Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 1154 insertions, 0 deletions

diff --git a/drivers/hwmon/aquacomputer_d5next.c b/drivers/hwmon/aquacomputer_d5next.c
new file mode 100644
index 000000000..9cc100801
--- /dev/null
+++ b/drivers/hwmon/aquacomputer_d5next.c
@@ -0,0 +1,1154 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * hwmon driver for Aquacomputer devices (D5 Next, Farbwerk, Farbwerk 360, Octo,
+ * Quadro, High Flow Next)
+ *
+ * Aquacomputer devices send HID reports (with ID 0x01) every second to report
+ * sensor values.
+ *
+ * Copyright 2021 Aleksa Savic <savicaleksa83@gmail.com>
+ * Copyright 2022 Jack Doan <me@jackdoan.com>
+ */
+
+#include <linux/crc16.h>
+#include <linux/debugfs.h>
+#include <linux/hid.h>
+#include <linux/hwmon.h>
+#include <linux/jiffies.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/seq_file.h>
+#include <asm/unaligned.h>
+
+#define USB_VENDOR_ID_AQUACOMPUTER	0x0c70
+#define USB_PRODUCT_ID_FARBWERK		0xf00a
+#define USB_PRODUCT_ID_QUADRO		0xf00d
+#define USB_PRODUCT_ID_D5NEXT		0xf00e
+#define USB_PRODUCT_ID_FARBWERK360	0xf010
+#define USB_PRODUCT_ID_OCTO		0xf011
+#define USB_PRODUCT_ID_HIGHFLOWNEXT	0xf012
+
+enum kinds { d5next, farbwerk, farbwerk360, octo, quadro, highflownext };
+
+static const char *const aqc_device_names[] = {
+	[d5next] = "d5next",
+	[farbwerk] = "farbwerk",
+	[farbwerk360] = "farbwerk360",
+	[octo] = "octo",
+	[quadro] = "quadro",
+	[highflownext] = "highflownext"
+};
+
+#define DRIVER_NAME			"aquacomputer_d5next"
+
+#define STATUS_REPORT_ID		0x01
+#define STATUS_UPDATE_INTERVAL		(2 * HZ)	/* In seconds */
+#define SERIAL_FIRST_PART		3
+#define SERIAL_SECOND_PART		5
+#define FIRMWARE_VERSION		13
+
+#define CTRL_REPORT_ID			0x03
+
+/* The HID report that the official software always sends
+ * after writing values, currently same for all devices
+ */
+#define SECONDARY_CTRL_REPORT_ID	0x02
+#define SECONDARY_CTRL_REPORT_SIZE	0x0B
+
+static u8 secondary_ctrl_report[] = {
+	0x02, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x34, 0xC6
+};
+
+/* Sensor sizes and offsets for all Aquacomputer devices */
+#define AQC_TEMP_SENSOR_SIZE		0x02
+#define AQC_TEMP_SENSOR_DISCONNECTED	0x7FFF
+#define AQC_FAN_PERCENT_OFFSET		0x00
+#define AQC_FAN_VOLTAGE_OFFSET		0x02
+#define AQC_FAN_CURRENT_OFFSET		0x04
+#define AQC_FAN_POWER_OFFSET		0x06
+#define AQC_FAN_SPEED_OFFSET		0x08
+
+/* Specs of the D5 Next pump */
+#define D5NEXT_NUM_FANS			2
+#define D5NEXT_NUM_SENSORS		1
+#define D5NEXT_NUM_VIRTUAL_SENSORS	8
+#define D5NEXT_CTRL_REPORT_SIZE		0x329
+
+/* Sensor report offsets for the D5 Next pump */
+#define D5NEXT_POWER_CYCLES		0x18
+#define D5NEXT_COOLANT_TEMP		0x57
+#define D5NEXT_PUMP_OFFSET		0x6c
+#define D5NEXT_FAN_OFFSET		0x5f
+#define D5NEXT_5V_VOLTAGE		0x39
+#define D5NEXT_12V_VOLTAGE		0x37
+#define D5NEXT_VIRTUAL_SENSORS_START	0x3f
+static u8 d5next_sensor_fan_offsets[] = { D5NEXT_PUMP_OFFSET, D5NEXT_FAN_OFFSET };
+
+/* Control report offsets for the D5 Next pump */
+#define D5NEXT_TEMP_CTRL_OFFSET		0x2D	/* Temperature sensor offsets location */
+static u16 d5next_ctrl_fan_offsets[] = { 0x97, 0x42 };	/* Pump and fan speed (from 0-100%) */
+
+/* Spec and sensor report offset for the Farbwerk RGB controller */
+#define FARBWERK_NUM_SENSORS		4
+#define FARBWERK_SENSOR_START		0x2f
+
+/* Specs of the Farbwerk 360 RGB controller */
+#define FARBWERK360_NUM_SENSORS			4
+#define FARBWERK360_NUM_VIRTUAL_SENSORS		16
+#define FARBWERK360_CTRL_REPORT_SIZE		0x682
+
+/* Sensor report offsets for the Farbwerk 360 */
+#define FARBWERK360_SENSOR_START		0x32
+#define FARBWERK360_VIRTUAL_SENSORS_START	0x3a
+
+/* Control report offsets for the Farbwerk 360 */
+#define FARBWERK360_TEMP_CTRL_OFFSET		0x8
+
+/* Specs of the Octo fan controller */
+#define OCTO_NUM_FANS			8
+#define OCTO_NUM_SENSORS		4
+#define OCTO_NUM_VIRTUAL_SENSORS	16
+#define OCTO_CTRL_REPORT_SIZE		0x65F
+
+/* Sensor report offsets for the Octo */
+#define OCTO_POWER_CYCLES		0x18
+#define OCTO_SENSOR_START		0x3D
+#define OCTO_VIRTUAL_SENSORS_START	0x45
+static u8 octo_sensor_fan_offsets[] = { 0x7D, 0x8A, 0x97, 0xA4, 0xB1, 0xBE, 0xCB, 0xD8 };
+
+/* Control report offsets for the Octo */
+#define OCTO_TEMP_CTRL_OFFSET		0xA
+/* Fan speed offsets (0-100%) */
+static u16 octo_ctrl_fan_offsets[] = { 0x5B, 0xB0, 0x105, 0x15A, 0x1AF, 0x204, 0x259, 0x2AE };
+
+/* Specs of Quadro fan controller */
+#define QUADRO_NUM_FANS			4
+#define QUADRO_NUM_SENSORS		4
+#define QUADRO_NUM_VIRTUAL_SENSORS	16
+#define QUADRO_CTRL_REPORT_SIZE		0x3c1
+
+/* Sensor report offsets for the Quadro */
+#define QUADRO_POWER_CYCLES		0x18
+#define QUADRO_SENSOR_START		0x34
+#define QUADRO_VIRTUAL_SENSORS_START	0x3c
+#define QUADRO_FLOW_SENSOR_OFFSET	0x6e
+static u8 quadro_sensor_fan_offsets[] = { 0x70, 0x7D, 0x8A, 0x97 };
+
+/* Control report offsets for the Quadro */
+#define QUADRO_TEMP_CTRL_OFFSET		0xA
+#define QUADRO_FLOW_PULSES_CTRL_OFFSET	0x6
+static u16 quadro_ctrl_fan_offsets[] = { 0x37, 0x8c, 0xe1, 0x136 }; /* Fan speed offsets (0-100%) */
+
+/* Specs of High Flow Next flow sensor */
+#define HIGHFLOWNEXT_NUM_SENSORS	2
+
+/* Sensor report offsets for the High Flow Next */
+#define HIGHFLOWNEXT_SENSOR_START	85
+#define HIGHFLOWNEXT_FLOW		81
+#define HIGHFLOWNEXT_WATER_QUALITY	89
+#define HIGHFLOWNEXT_POWER		91
+#define HIGHFLOWNEXT_CONDUCTIVITY	95
+#define HIGHFLOWNEXT_5V_VOLTAGE		97
+#define HIGHFLOWNEXT_5V_VOLTAGE_USB	99
+
+/* Labels for D5 Next */
+static const char *const label_d5next_temp[] = {
+	"Coolant temp"
+};
+
+static const char *const label_d5next_speeds[] = {
+	"Pump speed",
+	"Fan speed"
+};
+
+static const char *const label_d5next_power[] = {
+	"Pump power",
+	"Fan power"
+};
+
+static const char *const label_d5next_voltages[] = {
+	"Pump voltage",
+	"Fan voltage",
+	"+5V voltage",
+	"+12V voltage"
+};
+
+static const char *const label_d5next_current[] = {
+	"Pump current",
+	"Fan current"
+};
+
+/* Labels for Farbwerk, Farbwerk 360 and Octo and Quadro temperature sensors */
+static const char *const label_temp_sensors[] = {
+	"Sensor 1",
+	"Sensor 2",
+	"Sensor 3",
+	"Sensor 4"
+};
+
+static const char *const label_virtual_temp_sensors[] = {
+	"Virtual sensor 1",
+	"Virtual sensor 2",
+	"Virtual sensor 3",
+	"Virtual sensor 4",
+	"Virtual sensor 5",
+	"Virtual sensor 6",
+	"Virtual sensor 7",
+	"Virtual sensor 8",
+	"Virtual sensor 9",
+	"Virtual sensor 10",
+	"Virtual sensor 11",
+	"Virtual sensor 12",
+	"Virtual sensor 13",
+	"Virtual sensor 14",
+	"Virtual sensor 15",
+	"Virtual sensor 16",
+};
+
+/* Labels for Octo and Quadro (except speed) */
+static const char *const label_fan_speed[] = {
+	"Fan 1 speed",
+	"Fan 2 speed",
+	"Fan 3 speed",
+	"Fan 4 speed",
+	"Fan 5 speed",
+	"Fan 6 speed",
+	"Fan 7 speed",
+	"Fan 8 speed"
+};
+
+static const char *const label_fan_power[] = {
+	"Fan 1 power",
+	"Fan 2 power",
+	"Fan 3 power",
+	"Fan 4 power",
+	"Fan 5 power",
+	"Fan 6 power",
+	"Fan 7 power",
+	"Fan 8 power"
+};
+
+static const char *const label_fan_voltage[] = {
+	"Fan 1 voltage",
+	"Fan 2 voltage",
+	"Fan 3 voltage",
+	"Fan 4 voltage",
+	"Fan 5 voltage",
+	"Fan 6 voltage",
+	"Fan 7 voltage",
+	"Fan 8 voltage"
+};
+
+static const char *const label_fan_current[] = {
+	"Fan 1 current",
+	"Fan 2 current",
+	"Fan 3 current",
+	"Fan 4 current",
+	"Fan 5 current",
+	"Fan 6 current",
+	"Fan 7 current",
+	"Fan 8 current"
+};
+
+/* Labels for Quadro fan speeds */
+static const char *const label_quadro_speeds[] = {
+	"Fan 1 speed",
+	"Fan 2 speed",
+	"Fan 3 speed",
+	"Fan 4 speed",
+	"Flow speed [dL/h]"
+};
+
+/* Labels for High Flow Next */
+static const char *const label_highflownext_temp_sensors[] = {
+	"Coolant temp",
+	"External sensor"
+};
+
+static const char *const label_highflownext_fan_speed[] = {
+	"Flow [dL/h]",
+	"Water quality [%]",
+	"Conductivity [nS/cm]",
+};
+
+static const char *const label_highflownext_power[] = {
+	"Dissipated power",
+};
+
+static const char *const label_highflownext_voltage[] = {
+	"+5V voltage",
+	"+5V USB voltage"
+};
+
+struct aqc_data {
+	struct hid_device *hdev;
+	struct device *hwmon_dev;
+	struct dentry *debugfs;
+	struct mutex mutex;	/* Used for locking access when reading and writing PWM values */
+	enum kinds kind;
+	const char *name;
+
+	int buffer_size;
+	u8 *buffer;
+	int checksum_start;
+	int checksum_length;
+	int checksum_offset;
+
+	int num_fans;
+	u8 *fan_sensor_offsets;
+	u16 *fan_ctrl_offsets;
+	int num_temp_sensors;
+	int temp_sensor_start_offset;
+	int num_virtual_temp_sensors;
+	int virtual_temp_sensor_start_offset;
+	u16 temp_ctrl_offset;
+	u16 power_cycle_count_offset;
+	u8 flow_sensor_offset;
+	u8 flow_pulses_ctrl_offset;
+
+	/* General info, same across all devices */
+	u32 serial_number[2];
+	u16 firmware_version;
+
+	/* How many times the device was powered on, if available */
+	u32 power_cycles;
+
+	/* Sensor values */
+	s32 temp_input[20];	/* Max 4 physical and 16 virtual */
+	u16 speed_input[8];
+	u32 power_input[8];
+	u16 voltage_input[8];
+	u16 current_input[8];
+
+	/* Label values */
+	const char *const *temp_label;
+	const char *const *virtual_temp_label;
+	const char *const *speed_label;
+	const char *const *power_label;
+	const char *const *voltage_label;
+	const char *const *current_label;
+
+	unsigned long updated;
+};
+
+/* Converts from centi-percent */
+static int aqc_percent_to_pwm(u16 val)
+{
+	return DIV_ROUND_CLOSEST(val * 255, 100 * 100);
+}
+
+/* Converts to centi-percent */
+static int aqc_pwm_to_percent(long val)
+{
+	if (val < 0 || val > 255)
+		return -EINVAL;
+
+	return DIV_ROUND_CLOSEST(val * 100 * 100, 255);
+}
+
+/* Expects the mutex to be locked */
+static int aqc_get_ctrl_data(struct aqc_data *priv)
+{
+	int ret;
+
+	memset(priv->buffer, 0x00, priv->buffer_size);
+	ret = hid_hw_raw_request(priv->hdev, CTRL_REPORT_ID, priv->buffer, priv->buffer_size,
+				 HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
+	if (ret < 0)
+		ret = -ENODATA;
+
+	return ret;
+}
+
+/* Expects the mutex to be locked */
+static int aqc_send_ctrl_data(struct aqc_data *priv)
+{
+	int ret;
+	u16 checksum;
+
+	/* Init and xorout value for CRC-16/USB is 0xffff */
+	checksum = crc16(0xffff, priv->buffer + priv->checksum_start, priv->checksum_length);
+	checksum ^= 0xffff;
+
+	/* Place the new checksum at the end of the report */
+	put_unaligned_be16(checksum, priv->buffer + priv->checksum_offset);
+
+	/* Send the patched up report back to the device */
+	ret = hid_hw_raw_request(priv->hdev, CTRL_REPORT_ID, priv->buffer, priv->buffer_size,
+				 HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
+	if (ret < 0)
+		return ret;
+
+	/* The official software sends this report after every change, so do it here as well */
+	ret = hid_hw_raw_request(priv->hdev, SECONDARY_CTRL_REPORT_ID, secondary_ctrl_report,
+				 SECONDARY_CTRL_REPORT_SIZE, HID_FEATURE_REPORT,
+				 HID_REQ_SET_REPORT);
+	return ret;
+}
+
+/* Refreshes the control buffer and stores value at offset in val */
+static int aqc_get_ctrl_val(struct aqc_data *priv, int offset, long *val)
+{
+	int ret;
+
+	mutex_lock(&priv->mutex);
+
+	ret = aqc_get_ctrl_data(priv);
+	if (ret < 0)
+		goto unlock_and_return;
+
+	*val = (s16)get_unaligned_be16(priv->buffer + offset);
+
+unlock_and_return:
+	mutex_unlock(&priv->mutex);
+	return ret;
+}
+
+static int aqc_set_ctrl_val(struct aqc_data *priv, int offset, long val)
+{
+	int ret;
+
+	mutex_lock(&priv->mutex);
+
+	ret = aqc_get_ctrl_data(priv);
+	if (ret < 0)
+		goto unlock_and_return;
+
+	put_unaligned_be16((s16)val, priv->buffer + offset);
+
+	ret = aqc_send_ctrl_data(priv);
+
+unlock_and_return:
+	mutex_unlock(&priv->mutex);
+	return ret;
+}
+
+static umode_t aqc_is_visible(const void *data, enum hwmon_sensor_types type, u32 attr, int channel)
+{
+	const struct aqc_data *priv = data;
+
+	switch (type) {
+	case hwmon_temp:
+		if (channel < priv->num_temp_sensors) {
+			switch (attr) {
+			case hwmon_temp_label:
+			case hwmon_temp_input:
+				return 0444;
+			case hwmon_temp_offset:
+				if (priv->temp_ctrl_offset != 0)
+					return 0644;
+				break;
+			default:
+				break;
+			}
+		}
+
+		if (channel < priv->num_temp_sensors + priv->num_virtual_temp_sensors)
+			switch (attr) {
+			case hwmon_temp_label:
+			case hwmon_temp_input:
+				return 0444;
+			default:
+				break;
+			}
+		break;
+	case hwmon_pwm:
+		if (priv->fan_ctrl_offsets && channel < priv->num_fans) {
+			switch (attr) {
+			case hwmon_pwm_input:
+				return 0644;
+			default:
+				break;
+			}
+		}
+		break;
+	case hwmon_fan:
+		switch (attr) {
+		case hwmon_fan_input:
+		case hwmon_fan_label:
+			switch (priv->kind) {
+			case highflownext:
+				/* Special case to support flow sensor, water quality
+				 * and conductivity
+				 */
+				if (channel < 3)
+					return 0444;
+				break;
+			case quadro:
+				/* Special case to support flow sensor */
+				if (channel < priv->num_fans + 1)
+					return 0444;
+				break;
+			default:
+				if (channel < priv->num_fans)
+					return 0444;
+				break;
+			}
+			break;
+		case hwmon_fan_pulses:
+			/* Special case for Quadro flow sensor */
+			if (priv->kind == quadro && channel == priv->num_fans)
+				return 0644;
+			break;
+		default:
+			break;
+		}
+		break;
+	case hwmon_power:
+		switch (priv->kind) {
+		case highflownext:
+			/* Special case to support one power sensor */
+			if (channel == 0)
+				return 0444;
+			break;
+		default:
+			if (channel < priv->num_fans)
+				return 0444;
+			break;
+		}
+		break;
+	case hwmon_curr:
+		if (channel < priv->num_fans)
+			return 0444;
+		break;
+	case hwmon_in:
+		switch (priv->kind) {
+		case d5next:
+			/* Special case to support +5V and +12V voltage sensors */
+			if (channel < priv->num_fans + 2)
+				return 0444;
+			break;
+		case highflownext:
+			/* Special case to support two voltage sensors */
+			if (channel < 2)
+				return 0444;
+			break;
+		default:
+			if (channel < priv->num_fans)
+				return 0444;
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int aqc_read(struct device *dev, enum hwmon_sensor_types type, u32 attr,
+		    int channel, long *val)
+{
+	int ret;
+	struct aqc_data *priv = dev_get_drvdata(dev);
+
+	if (time_after(jiffies, priv->updated + STATUS_UPDATE_INTERVAL))
+		return -ENODATA;
+
+	switch (type) {
+	case hwmon_temp:
+		switch (attr) {
+		case hwmon_temp_input:
+			if (priv->temp_input[channel] == -ENODATA)
+				return -ENODATA;
+
+			*val = priv->temp_input[channel];
+			break;
+		case hwmon_temp_offset:
+			ret =
+			    aqc_get_ctrl_val(priv, priv->temp_ctrl_offset +
+					     channel * AQC_TEMP_SENSOR_SIZE, val);
+			if (ret < 0)
+				return ret;
+
+			*val *= 10;
+			break;
+		default:
+			break;
+		}
+		break;
+	case hwmon_fan:
+		switch (attr) {
+		case hwmon_fan_input:
+			*val = priv->speed_input[channel];
+			break;
+		case hwmon_fan_pulses:
+			ret = aqc_get_ctrl_val(priv, priv->flow_pulses_ctrl_offset, val);
+			if (ret < 0)
+				return ret;
+			break;
+		default:
+			break;
+		}
+		break;
+	case hwmon_power:
+		*val = priv->power_input[channel];
+		break;
+	case hwmon_pwm:
+		if (priv->fan_ctrl_offsets) {
+			ret = aqc_get_ctrl_val(priv, priv->fan_ctrl_offsets[channel], val);
+			if (ret < 0)
+				return ret;
+
+			*val = aqc_percent_to_pwm(ret);
+		}
+		break;
+	case hwmon_in:
+		*val = priv->voltage_input[channel];
+		break;
+	case hwmon_curr:
+		*val = priv->current_input[channel];
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static int aqc_read_string(struct device *dev, enum hwmon_sensor_types type, u32 attr,
+			   int channel, const char **str)
+{
+	struct aqc_data *priv = dev_get_drvdata(dev);
+
+	switch (type) {
+	case hwmon_temp:
+		if (channel < priv->num_temp_sensors)
+			*str = priv->temp_label[channel];
+		else
+			*str = priv->virtual_temp_label[channel - priv->num_temp_sensors];
+		break;
+	case hwmon_fan:
+		*str = priv->speed_label[channel];
+		break;
+	case hwmon_power:
+		*str = priv->power_label[channel];
+		break;
+	case hwmon_in:
+		*str = priv->voltage_label[channel];
+		break;
+	case hwmon_curr:
+		*str = priv->current_label[channel];
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static int aqc_write(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel,
+		     long val)
+{
+	int ret, pwm_value;
+	struct aqc_data *priv = dev_get_drvdata(dev);
+
+	switch (type) {
+	case hwmon_temp:
+		switch (attr) {
+		case hwmon_temp_offset:
+			/* Limit temp offset to +/- 15K as in the official software */
+			val = clamp_val(val, -15000, 15000) / 10;
+			ret =
+			    aqc_set_ctrl_val(priv, priv->temp_ctrl_offset +
+					     channel * AQC_TEMP_SENSOR_SIZE, val);
+			if (ret < 0)
+				return ret;
+			break;
+		default:
+			return -EOPNOTSUPP;
+		}
+		break;
+	case hwmon_fan:
+		switch (attr) {
+		case hwmon_fan_pulses:
+			val = clamp_val(val, 10, 1000);
+			ret = aqc_set_ctrl_val(priv, priv->flow_pulses_ctrl_offset, val);
+			if (ret < 0)
+				return ret;
+			break;
+		default:
+			break;
+		}
+		break;
+	case hwmon_pwm:
+		switch (attr) {
+		case hwmon_pwm_input:
+			if (priv->fan_ctrl_offsets) {
+				pwm_value = aqc_pwm_to_percent(val);
+				if (pwm_value < 0)
+					return pwm_value;
+
+				ret = aqc_set_ctrl_val(priv, priv->fan_ctrl_offsets[channel],
+						       pwm_value);
+				if (ret < 0)
+					return ret;
+			}
+			break;
+		default:
+			break;
+		}
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static const struct hwmon_ops aqc_hwmon_ops = {
+	.is_visible = aqc_is_visible,
+	.read = aqc_read,
+	.read_string = aqc_read_string,
+	.write = aqc_write
+};
+
+static const struct hwmon_channel_info *aqc_info[] = {
+	HWMON_CHANNEL_INFO(temp,
+			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_OFFSET,
+			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_OFFSET,
+			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_OFFSET,
+			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_OFFSET,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL),
+	HWMON_CHANNEL_INFO(fan,
+			   HWMON_F_INPUT | HWMON_F_LABEL,
+			   HWMON_F_INPUT | HWMON_F_LABEL,
+			   HWMON_F_INPUT | HWMON_F_LABEL,
+			   HWMON_F_INPUT | HWMON_F_LABEL,
+			   HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_PULSES,
+			   HWMON_F_INPUT | HWMON_F_LABEL,
+			   HWMON_F_INPUT | HWMON_F_LABEL,
+			   HWMON_F_INPUT | HWMON_F_LABEL),
+	HWMON_CHANNEL_INFO(power,
+			   HWMON_P_INPUT | HWMON_P_LABEL,
+			   HWMON_P_INPUT | HWMON_P_LABEL,
+			   HWMON_P_INPUT | HWMON_P_LABEL,
+			   HWMON_P_INPUT | HWMON_P_LABEL,
+			   HWMON_P_INPUT | HWMON_P_LABEL,
+			   HWMON_P_INPUT | HWMON_P_LABEL,
+			   HWMON_P_INPUT | HWMON_P_LABEL,
+			   HWMON_P_INPUT | HWMON_P_LABEL),
+	HWMON_CHANNEL_INFO(pwm,
+			   HWMON_PWM_INPUT,
+			   HWMON_PWM_INPUT,
+			   HWMON_PWM_INPUT,
+			   HWMON_PWM_INPUT,
+			   HWMON_PWM_INPUT,
+			   HWMON_PWM_INPUT,
+			   HWMON_PWM_INPUT,
+			   HWMON_PWM_INPUT),
+	HWMON_CHANNEL_INFO(in,
+			   HWMON_I_INPUT | HWMON_I_LABEL,
+			   HWMON_I_INPUT | HWMON_I_LABEL,
+			   HWMON_I_INPUT | HWMON_I_LABEL,
+			   HWMON_I_INPUT | HWMON_I_LABEL,
+			   HWMON_I_INPUT | HWMON_I_LABEL,
+			   HWMON_I_INPUT | HWMON_I_LABEL,
+			   HWMON_I_INPUT | HWMON_I_LABEL,
+			   HWMON_I_INPUT | HWMON_I_LABEL),
+	HWMON_CHANNEL_INFO(curr,
+			   HWMON_C_INPUT | HWMON_C_LABEL,
+			   HWMON_C_INPUT | HWMON_C_LABEL,
+			   HWMON_C_INPUT | HWMON_C_LABEL,
+			   HWMON_C_INPUT | HWMON_C_LABEL,
+			   HWMON_C_INPUT | HWMON_C_LABEL,
+			   HWMON_C_INPUT | HWMON_C_LABEL,
+			   HWMON_C_INPUT | HWMON_C_LABEL,
+			   HWMON_C_INPUT | HWMON_C_LABEL),
+	NULL
+};
+
+static const struct hwmon_chip_info aqc_chip_info = {
+	.ops = &aqc_hwmon_ops,
+	.info = aqc_info,
+};
+
+static int aqc_raw_event(struct hid_device *hdev, struct hid_report *report, u8 *data, int size)
+{
+	int i, j, sensor_value;
+	struct aqc_data *priv;
+
+	if (report->id != STATUS_REPORT_ID)
+		return 0;
+
+	priv = hid_get_drvdata(hdev);
+
+	/* Info provided with every report */
+	priv->serial_number[0] = get_unaligned_be16(data + SERIAL_FIRST_PART);
+	priv->serial_number[1] = get_unaligned_be16(data + SERIAL_SECOND_PART);
+	priv->firmware_version = get_unaligned_be16(data + FIRMWARE_VERSION);
+
+	/* Physical temperature sensor readings */
+	for (i = 0; i < priv->num_temp_sensors; i++) {
+		sensor_value = get_unaligned_be16(data +
+						  priv->temp_sensor_start_offset +
+						  i * AQC_TEMP_SENSOR_SIZE);
+		if (sensor_value == AQC_TEMP_SENSOR_DISCONNECTED)
+			priv->temp_input[i] = -ENODATA;
+		else
+			priv->temp_input[i] = sensor_value * 10;
+	}
+
+	/* Virtual temperature sensor readings */
+	for (j = 0; j < priv->num_virtual_temp_sensors; j++) {
+		sensor_value = get_unaligned_be16(data +
+						  priv->virtual_temp_sensor_start_offset +
+						  j * AQC_TEMP_SENSOR_SIZE);
+		if (sensor_value == AQC_TEMP_SENSOR_DISCONNECTED)
+			priv->temp_input[i] = -ENODATA;
+		else
+			priv->temp_input[i] = sensor_value * 10;
+		i++;
+	}
+
+	/* Fan speed and related readings */
+	for (i = 0; i < priv->num_fans; i++) {
+		priv->speed_input[i] =
+		    get_unaligned_be16(data + priv->fan_sensor_offsets[i] + AQC_FAN_SPEED_OFFSET);
+		priv->power_input[i] =
+		    get_unaligned_be16(data + priv->fan_sensor_offsets[i] +
+				       AQC_FAN_POWER_OFFSET) * 10000;
+		priv->voltage_input[i] =
+		    get_unaligned_be16(data + priv->fan_sensor_offsets[i] +
+				       AQC_FAN_VOLTAGE_OFFSET) * 10;
+		priv->current_input[i] =
+		    get_unaligned_be16(data + priv->fan_sensor_offsets[i] + AQC_FAN_CURRENT_OFFSET);
+	}
+
+	if (priv->power_cycle_count_offset != 0)
+		priv->power_cycles = get_unaligned_be32(data + priv->power_cycle_count_offset);
+
+	/* Special-case sensor readings */
+	switch (priv->kind) {
+	case d5next:
+		priv->voltage_input[2] = get_unaligned_be16(data + D5NEXT_5V_VOLTAGE) * 10;
+		priv->voltage_input[3] = get_unaligned_be16(data + D5NEXT_12V_VOLTAGE) * 10;
+		break;
+	case quadro:
+		priv->speed_input[4] = get_unaligned_be16(data + priv->flow_sensor_offset);
+		break;
+	case highflownext:
+		/* If external temp sensor is not connected, its power reading is also N/A */
+		if (priv->temp_input[1] == -ENODATA)
+			priv->power_input[0] = -ENODATA;
+		else
+			priv->power_input[0] =
+			    get_unaligned_be16(data + HIGHFLOWNEXT_POWER) * 1000000;
+
+		priv->voltage_input[0] = get_unaligned_be16(data + HIGHFLOWNEXT_5V_VOLTAGE) * 10;
+		priv->voltage_input[1] =
+		    get_unaligned_be16(data + HIGHFLOWNEXT_5V_VOLTAGE_USB) * 10;
+
+		priv->speed_input[0] = get_unaligned_be16(data + HIGHFLOWNEXT_FLOW);
+		priv->speed_input[1] = get_unaligned_be16(data + HIGHFLOWNEXT_WATER_QUALITY);
+		priv->speed_input[2] = get_unaligned_be16(data + HIGHFLOWNEXT_CONDUCTIVITY);
+		break;
+	default:
+		break;
+	}
+
+	priv->updated = jiffies;
+
+	return 0;
+}
+
+#ifdef CONFIG_DEBUG_FS
+
+static int serial_number_show(struct seq_file *seqf, void *unused)
+{
+	struct aqc_data *priv = seqf->private;
+
+	seq_printf(seqf, "%05u-%05u\n", priv->serial_number[0], priv->serial_number[1]);
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(serial_number);
+
+static int firmware_version_show(struct seq_file *seqf, void *unused)
+{
+	struct aqc_data *priv = seqf->private;
+
+	seq_printf(seqf, "%u\n", priv->firmware_version);
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(firmware_version);
+
+static int power_cycles_show(struct seq_file *seqf, void *unused)
+{
+	struct aqc_data *priv = seqf->private;
+
+	seq_printf(seqf, "%u\n", priv->power_cycles);
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(power_cycles);
+
+static void aqc_debugfs_init(struct aqc_data *priv)
+{
+	char name[64];
+
+	scnprintf(name, sizeof(name), "%s_%s-%s", "aquacomputer", priv->name,
+		  dev_name(&priv->hdev->dev));
+
+	priv->debugfs = debugfs_create_dir(name, NULL);
+	debugfs_create_file("serial_number", 0444, priv->debugfs, priv, &serial_number_fops);
+	debugfs_create_file("firmware_version", 0444, priv->debugfs, priv, &firmware_version_fops);
+
+	if (priv->power_cycle_count_offset != 0)
+		debugfs_create_file("power_cycles", 0444, priv->debugfs, priv, &power_cycles_fops);
+}
+
+#else
+
+static void aqc_debugfs_init(struct aqc_data *priv)
+{
+}
+
+#endif
+
+static int aqc_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+	struct aqc_data *priv;
+	int ret;
+
+	priv = devm_kzalloc(&hdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->hdev = hdev;
+	hid_set_drvdata(hdev, priv);
+
+	priv->updated = jiffies - STATUS_UPDATE_INTERVAL;
+
+	ret = hid_parse(hdev);
+	if (ret)
+		return ret;
+
+	ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
+	if (ret)
+		return ret;
+
+	ret = hid_hw_open(hdev);
+	if (ret)
+		goto fail_and_stop;
+
+	switch (hdev->product) {
+	case USB_PRODUCT_ID_D5NEXT:
+		priv->kind = d5next;
+
+		priv->num_fans = D5NEXT_NUM_FANS;
+		priv->fan_sensor_offsets = d5next_sensor_fan_offsets;
+		priv->fan_ctrl_offsets = d5next_ctrl_fan_offsets;
+
+		priv->num_temp_sensors = D5NEXT_NUM_SENSORS;
+		priv->temp_sensor_start_offset = D5NEXT_COOLANT_TEMP;
+		priv->num_virtual_temp_sensors = D5NEXT_NUM_VIRTUAL_SENSORS;
+		priv->virtual_temp_sensor_start_offset = D5NEXT_VIRTUAL_SENSORS_START;
+		priv->temp_ctrl_offset = D5NEXT_TEMP_CTRL_OFFSET;
+
+		priv->buffer_size = D5NEXT_CTRL_REPORT_SIZE;
+
+		priv->power_cycle_count_offset = D5NEXT_POWER_CYCLES;
+
+		priv->temp_label = label_d5next_temp;
+		priv->virtual_temp_label = label_virtual_temp_sensors;
+		priv->speed_label = label_d5next_speeds;
+		priv->power_label = label_d5next_power;
+		priv->voltage_label = label_d5next_voltages;
+		priv->current_label = label_d5next_current;
+		break;
+	case USB_PRODUCT_ID_FARBWERK:
+		priv->kind = farbwerk;
+
+		priv->num_fans = 0;
+
+		priv->num_temp_sensors = FARBWERK_NUM_SENSORS;
+		priv->temp_sensor_start_offset = FARBWERK_SENSOR_START;
+
+		priv->temp_label = label_temp_sensors;
+		break;
+	case USB_PRODUCT_ID_FARBWERK360:
+		priv->kind = farbwerk360;
+
+		priv->num_fans = 0;
+
+		priv->num_temp_sensors = FARBWERK360_NUM_SENSORS;
+		priv->temp_sensor_start_offset = FARBWERK360_SENSOR_START;
+		priv->num_virtual_temp_sensors = FARBWERK360_NUM_VIRTUAL_SENSORS;
+		priv->virtual_temp_sensor_start_offset = FARBWERK360_VIRTUAL_SENSORS_START;
+		priv->temp_ctrl_offset = FARBWERK360_TEMP_CTRL_OFFSET;
+
+		priv->buffer_size = FARBWERK360_CTRL_REPORT_SIZE;
+
+		priv->temp_label = label_temp_sensors;
+		priv->virtual_temp_label = label_virtual_temp_sensors;
+		break;
+	case USB_PRODUCT_ID_OCTO:
+		priv->kind = octo;
+
+		priv->num_fans = OCTO_NUM_FANS;
+		priv->fan_sensor_offsets = octo_sensor_fan_offsets;
+		priv->fan_ctrl_offsets = octo_ctrl_fan_offsets;
+
+		priv->num_temp_sensors = OCTO_NUM_SENSORS;
+		priv->temp_sensor_start_offset = OCTO_SENSOR_START;
+		priv->num_virtual_temp_sensors = OCTO_NUM_VIRTUAL_SENSORS;
+		priv->virtual_temp_sensor_start_offset = OCTO_VIRTUAL_SENSORS_START;
+		priv->temp_ctrl_offset = OCTO_TEMP_CTRL_OFFSET;
+
+		priv->buffer_size = OCTO_CTRL_REPORT_SIZE;
+
+		priv->power_cycle_count_offset = OCTO_POWER_CYCLES;
+
+		priv->temp_label = label_temp_sensors;
+		priv->virtual_temp_label = label_virtual_temp_sensors;
+		priv->speed_label = label_fan_speed;
+		priv->power_label = label_fan_power;
+		priv->voltage_label = label_fan_voltage;
+		priv->current_label = label_fan_current;
+		break;
+	case USB_PRODUCT_ID_QUADRO:
+		priv->kind = quadro;
+
+		priv->num_fans = QUADRO_NUM_FANS;
+		priv->fan_sensor_offsets = quadro_sensor_fan_offsets;
+		priv->fan_ctrl_offsets = quadro_ctrl_fan_offsets;
+
+		priv->num_temp_sensors = QUADRO_NUM_SENSORS;
+		priv->temp_sensor_start_offset = QUADRO_SENSOR_START;
+		priv->num_virtual_temp_sensors = QUADRO_NUM_VIRTUAL_SENSORS;
+		priv->virtual_temp_sensor_start_offset = QUADRO_VIRTUAL_SENSORS_START;
+		priv->temp_ctrl_offset = QUADRO_TEMP_CTRL_OFFSET;
+
+		priv->buffer_size = QUADRO_CTRL_REPORT_SIZE;
+
+		priv->flow_sensor_offset = QUADRO_FLOW_SENSOR_OFFSET;
+		priv->flow_pulses_ctrl_offset = QUADRO_FLOW_PULSES_CTRL_OFFSET;
+		priv->power_cycle_count_offset = QUADRO_POWER_CYCLES;
+
+		priv->temp_label = label_temp_sensors;
+		priv->virtual_temp_label = label_virtual_temp_sensors;
+		priv->speed_label = label_quadro_speeds;
+		priv->power_label = label_fan_power;
+		priv->voltage_label = label_fan_voltage;
+		priv->current_label = label_fan_current;
+		break;
+	case USB_PRODUCT_ID_HIGHFLOWNEXT:
+		priv->kind = highflownext;
+
+		priv->num_fans = 0;
+
+		priv->num_temp_sensors = HIGHFLOWNEXT_NUM_SENSORS;
+		priv->temp_sensor_start_offset = HIGHFLOWNEXT_SENSOR_START;
+
+		priv->power_cycle_count_offset = QUADRO_POWER_CYCLES;
+
+		priv->temp_label = label_highflownext_temp_sensors;
+		priv->speed_label = label_highflownext_fan_speed;
+		priv->power_label = label_highflownext_power;
+		priv->voltage_label = label_highflownext_voltage;
+		break;
+	default:
+		break;
+	}
+
+	if (priv->buffer_size != 0) {
+		priv->checksum_start = 0x01;
+		priv->checksum_length = priv->buffer_size - 3;
+		priv->checksum_offset = priv->buffer_size - 2;
+	}
+
+	priv->name = aqc_device_names[priv->kind];
+
+	priv->buffer = devm_kzalloc(&hdev->dev, priv->buffer_size, GFP_KERNEL);
+	if (!priv->buffer) {
+		ret = -ENOMEM;
+		goto fail_and_close;
+	}
+
+	mutex_init(&priv->mutex);
+
+	priv->hwmon_dev = hwmon_device_register_with_info(&hdev->dev, priv->name, priv,
+							  &aqc_chip_info, NULL);
+
+	if (IS_ERR(priv->hwmon_dev)) {
+		ret = PTR_ERR(priv->hwmon_dev);
+		goto fail_and_close;
+	}
+
+	aqc_debugfs_init(priv);
+
+	return 0;
+
+fail_and_close:
+	hid_hw_close(hdev);
+fail_and_stop:
+	hid_hw_stop(hdev);
+	return ret;
+}
+
+static void aqc_remove(struct hid_device *hdev)
+{
+	struct aqc_data *priv = hid_get_drvdata(hdev);
+
+	debugfs_remove_recursive(priv->debugfs);
+	hwmon_device_unregister(priv->hwmon_dev);
+
+	hid_hw_close(hdev);
+	hid_hw_stop(hdev);
+}
+
+static const struct hid_device_id aqc_table[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_D5NEXT) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_FARBWERK) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_FARBWERK360) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_OCTO) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_QUADRO) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_AQUACOMPUTER, USB_PRODUCT_ID_HIGHFLOWNEXT) },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(hid, aqc_table);
+
+static struct hid_driver aqc_driver = {
+	.name = DRIVER_NAME,
+	.id_table = aqc_table,
+	.probe = aqc_probe,
+	.remove = aqc_remove,
+	.raw_event = aqc_raw_event,
+};
+
+static int __init aqc_init(void)
+{
+	return hid_register_driver(&aqc_driver);
+}
+
+static void __exit aqc_exit(void)
+{
+	hid_unregister_driver(&aqc_driver);
+}
+
+/* Request to initialize after the HID bus to ensure it's not being loaded before */
+late_initcall(aqc_init);
+module_exit(aqc_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Aleksa Savic <savicaleksa83@gmail.com>");
+MODULE_AUTHOR("Jack Doan <me@jackdoan.com>");
+MODULE_DESCRIPTION("Hwmon driver for Aquacomputer devices");