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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/media/usb/dvb-usb/digitv.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip
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(). ...
Diffstat (limited to 'drivers/media/usb/dvb-usb/digitv.c')
-rw-r--r--drivers/media/usb/dvb-usb/digitv.c370
1 files changed, 370 insertions, 0 deletions
diff --git a/drivers/media/usb/dvb-usb/digitv.c b/drivers/media/usb/dvb-usb/digitv.c
new file mode 100644
index 000000000..2756815a7
--- /dev/null
+++ b/drivers/media/usb/dvb-usb/digitv.c
@@ -0,0 +1,370 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* DVB USB compliant linux driver for Nebula Electronics uDigiTV DVB-T USB2.0
+ * receiver
+ *
+ * Copyright (C) 2005 Patrick Boettcher (patrick.boettcher@posteo.de)
+ *
+ * partly based on the SDK published by Nebula Electronics
+ *
+ * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
+ */
+#include "digitv.h"
+
+#include "mt352.h"
+#include "nxt6000.h"
+
+/* debug */
+static int dvb_usb_digitv_debug;
+module_param_named(debug,dvb_usb_digitv_debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS);
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+#define deb_rc(args...) dprintk(dvb_usb_digitv_debug,0x01,args)
+
+static int digitv_ctrl_msg(struct dvb_usb_device *d,
+ u8 cmd, u8 vv, u8 *wbuf, int wlen, u8 *rbuf, int rlen)
+{
+ struct digitv_state *st = d->priv;
+ int ret, wo;
+
+ wo = (rbuf == NULL || rlen == 0); /* write-only */
+
+ if (wlen > 4 || rlen > 4)
+ return -EIO;
+
+ memset(st->sndbuf, 0, 7);
+ memset(st->rcvbuf, 0, 7);
+
+ st->sndbuf[0] = cmd;
+ st->sndbuf[1] = vv;
+ st->sndbuf[2] = wo ? wlen : rlen;
+
+ if (wo) {
+ memcpy(&st->sndbuf[3], wbuf, wlen);
+ ret = dvb_usb_generic_write(d, st->sndbuf, 7);
+ } else {
+ ret = dvb_usb_generic_rw(d, st->sndbuf, 7, st->rcvbuf, 7, 10);
+ memcpy(rbuf, &st->rcvbuf[3], rlen);
+ }
+ return ret;
+}
+
+/* I2C */
+static int digitv_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
+{
+ struct dvb_usb_device *d = i2c_get_adapdata(adap);
+ int i;
+
+ if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+ return -EAGAIN;
+
+ if (num > 2)
+ warn("more than 2 i2c messages at a time is not handled yet. TODO.");
+
+ for (i = 0; i < num; i++) {
+ /* write/read request */
+ if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
+ if (digitv_ctrl_msg(d, USB_READ_COFDM, msg[i].buf[0], NULL, 0,
+ msg[i+1].buf,msg[i+1].len) < 0)
+ break;
+ i++;
+ } else
+ if (digitv_ctrl_msg(d,USB_WRITE_COFDM, msg[i].buf[0],
+ &msg[i].buf[1],msg[i].len-1,NULL,0) < 0)
+ break;
+ }
+
+ mutex_unlock(&d->i2c_mutex);
+ return i;
+}
+
+static u32 digitv_i2c_func(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm digitv_i2c_algo = {
+ .master_xfer = digitv_i2c_xfer,
+ .functionality = digitv_i2c_func,
+};
+
+/* Callbacks for DVB USB */
+static int digitv_identify_state(struct usb_device *udev,
+ const struct dvb_usb_device_properties *props,
+ const struct dvb_usb_device_description **desc,
+ int *cold)
+{
+ *cold = udev->descriptor.iManufacturer == 0 && udev->descriptor.iProduct == 0;
+ return 0;
+}
+
+static int digitv_mt352_demod_init(struct dvb_frontend *fe)
+{
+ static u8 reset_buf[] = { 0x89, 0x38, 0x8a, 0x2d, 0x50, 0x80 };
+ static u8 init_buf[] = { 0x68, 0xa0, 0x8e, 0x40, 0x53, 0x50,
+ 0x67, 0x20, 0x7d, 0x01, 0x7c, 0x00, 0x7a, 0x00,
+ 0x79, 0x20, 0x57, 0x05, 0x56, 0x31, 0x88, 0x0f,
+ 0x75, 0x32 };
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(reset_buf); i += 2)
+ mt352_write(fe, &reset_buf[i], 2);
+
+ msleep(1);
+
+ for (i = 0; i < ARRAY_SIZE(init_buf); i += 2)
+ mt352_write(fe, &init_buf[i], 2);
+
+ return 0;
+}
+
+static struct mt352_config digitv_mt352_config = {
+ .demod_init = digitv_mt352_demod_init,
+};
+
+static int digitv_nxt6000_tuner_set_params(struct dvb_frontend *fe)
+{
+ struct dvb_usb_adapter *adap = fe->dvb->priv;
+ u8 b[5];
+
+ fe->ops.tuner_ops.calc_regs(fe, b, sizeof(b));
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+ return digitv_ctrl_msg(adap->dev, USB_WRITE_TUNER, 0, &b[1], 4, NULL, 0);
+}
+
+static struct nxt6000_config digitv_nxt6000_config = {
+ .clock_inversion = 1,
+};
+
+static int digitv_frontend_attach(struct dvb_usb_adapter *adap)
+{
+ struct digitv_state *st = adap->dev->priv;
+
+ adap->fe_adap[0].fe = dvb_attach(mt352_attach, &digitv_mt352_config,
+ &adap->dev->i2c_adap);
+ if ((adap->fe_adap[0].fe) != NULL) {
+ st->is_nxt6000 = 0;
+ return 0;
+ }
+ adap->fe_adap[0].fe = dvb_attach(nxt6000_attach,
+ &digitv_nxt6000_config,
+ &adap->dev->i2c_adap);
+ if ((adap->fe_adap[0].fe) != NULL) {
+ st->is_nxt6000 = 1;
+ return 0;
+ }
+ return -EIO;
+}
+
+static int digitv_tuner_attach(struct dvb_usb_adapter *adap)
+{
+ struct digitv_state *st = adap->dev->priv;
+
+ if (!dvb_attach(dvb_pll_attach, adap->fe_adap[0].fe, 0x60, NULL, DVB_PLL_TDED4))
+ return -ENODEV;
+
+ if (st->is_nxt6000)
+ adap->fe_adap[0].fe->ops.tuner_ops.set_params = digitv_nxt6000_tuner_set_params;
+
+ return 0;
+}
+
+static struct rc_map_table rc_map_digitv_table[] = {
+ { 0x5f55, KEY_0 },
+ { 0x6f55, KEY_1 },
+ { 0x9f55, KEY_2 },
+ { 0xaf55, KEY_3 },
+ { 0x5f56, KEY_4 },
+ { 0x6f56, KEY_5 },
+ { 0x9f56, KEY_6 },
+ { 0xaf56, KEY_7 },
+ { 0x5f59, KEY_8 },
+ { 0x6f59, KEY_9 },
+ { 0x9f59, KEY_TV },
+ { 0xaf59, KEY_AUX },
+ { 0x5f5a, KEY_DVD },
+ { 0x6f5a, KEY_POWER },
+ { 0x9f5a, KEY_CAMERA }, /* labelled 'Picture' */
+ { 0xaf5a, KEY_AUDIO },
+ { 0x5f65, KEY_INFO },
+ { 0x6f65, KEY_F13 }, /* 16:9 */
+ { 0x9f65, KEY_F14 }, /* 14:9 */
+ { 0xaf65, KEY_EPG },
+ { 0x5f66, KEY_EXIT },
+ { 0x6f66, KEY_MENU },
+ { 0x9f66, KEY_UP },
+ { 0xaf66, KEY_DOWN },
+ { 0x5f69, KEY_LEFT },
+ { 0x6f69, KEY_RIGHT },
+ { 0x9f69, KEY_ENTER },
+ { 0xaf69, KEY_CHANNELUP },
+ { 0x5f6a, KEY_CHANNELDOWN },
+ { 0x6f6a, KEY_VOLUMEUP },
+ { 0x9f6a, KEY_VOLUMEDOWN },
+ { 0xaf6a, KEY_RED },
+ { 0x5f95, KEY_GREEN },
+ { 0x6f95, KEY_YELLOW },
+ { 0x9f95, KEY_BLUE },
+ { 0xaf95, KEY_SUBTITLE },
+ { 0x5f96, KEY_F15 }, /* AD */
+ { 0x6f96, KEY_TEXT },
+ { 0x9f96, KEY_MUTE },
+ { 0xaf96, KEY_REWIND },
+ { 0x5f99, KEY_STOP },
+ { 0x6f99, KEY_PLAY },
+ { 0x9f99, KEY_FASTFORWARD },
+ { 0xaf99, KEY_F16 }, /* chapter */
+ { 0x5f9a, KEY_PAUSE },
+ { 0x6f9a, KEY_PLAY },
+ { 0x9f9a, KEY_RECORD },
+ { 0xaf9a, KEY_F17 }, /* picture in picture */
+ { 0x5fa5, KEY_KPPLUS }, /* zoom in */
+ { 0x6fa5, KEY_KPMINUS }, /* zoom out */
+ { 0x9fa5, KEY_F18 }, /* capture */
+ { 0xafa5, KEY_F19 }, /* web */
+ { 0x5fa6, KEY_EMAIL },
+ { 0x6fa6, KEY_PHONE },
+ { 0x9fa6, KEY_PC },
+};
+
+static int digitv_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
+{
+ struct rc_map_table *entry;
+ int ret, i;
+ u8 key[4];
+ u8 b[4] = { 0 };
+
+ *event = 0;
+ *state = REMOTE_NO_KEY_PRESSED;
+
+ ret = digitv_ctrl_msg(d, USB_READ_REMOTE, 0, NULL, 0, key, 4);
+ if (ret)
+ return ret;
+
+ /* Tell the device we've read the remote. Not sure how necessary
+ this is, but the Nebula SDK does it. */
+ ret = digitv_ctrl_msg(d, USB_WRITE_REMOTE, 0, b, 4, NULL, 0);
+ if (ret)
+ return ret;
+
+ /* if something is inside the buffer, simulate key press */
+ if (key[0] != 0) {
+ for (i = 0; i < d->props.rc.legacy.rc_map_size; i++) {
+ entry = &d->props.rc.legacy.rc_map_table[i];
+
+ if (rc5_custom(entry) == key[0] &&
+ rc5_data(entry) == key[1]) {
+ *event = entry->keycode;
+ *state = REMOTE_KEY_PRESSED;
+ return 0;
+ }
+ }
+
+ deb_rc("key: %*ph\n", 4, key);
+ }
+
+ return 0;
+}
+
+/* DVB USB Driver stuff */
+static struct dvb_usb_device_properties digitv_properties;
+
+static int digitv_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct dvb_usb_device *d;
+ int ret = dvb_usb_device_init(intf, &digitv_properties, THIS_MODULE, &d,
+ adapter_nr);
+ if (ret == 0) {
+ u8 b[4] = { 0 };
+
+ if (d != NULL) { /* do that only when the firmware is loaded */
+ b[0] = 1;
+ digitv_ctrl_msg(d,USB_WRITE_REMOTE_TYPE,0,b,4,NULL,0);
+
+ b[0] = 0;
+ digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0);
+ }
+ }
+ return ret;
+}
+
+enum {
+ ANCHOR_NEBULA_DIGITV,
+};
+
+static struct usb_device_id digitv_table[] = {
+ DVB_USB_DEV(ANCHOR, ANCHOR_NEBULA_DIGITV),
+ { }
+};
+
+MODULE_DEVICE_TABLE (usb, digitv_table);
+
+static struct dvb_usb_device_properties digitv_properties = {
+ .caps = DVB_USB_IS_AN_I2C_ADAPTER,
+
+ .usb_ctrl = CYPRESS_FX2,
+ .firmware = "dvb-usb-digitv-02.fw",
+
+ .size_of_priv = sizeof(struct digitv_state),
+
+ .num_adapters = 1,
+ .adapter = {
+ {
+ .num_frontends = 1,
+ .fe = {{
+ .frontend_attach = digitv_frontend_attach,
+ .tuner_attach = digitv_tuner_attach,
+
+ /* parameter for the MPEG2-data transfer */
+ .stream = {
+ .type = USB_BULK,
+ .count = 7,
+ .endpoint = 0x02,
+ .u = {
+ .bulk = {
+ .buffersize = 4096,
+ }
+ }
+ },
+ }},
+ }
+ },
+ .identify_state = digitv_identify_state,
+
+ .rc.legacy = {
+ .rc_interval = 1000,
+ .rc_map_table = rc_map_digitv_table,
+ .rc_map_size = ARRAY_SIZE(rc_map_digitv_table),
+ .rc_query = digitv_rc_query,
+ },
+
+ .i2c_algo = &digitv_i2c_algo,
+
+ .generic_bulk_ctrl_endpoint = 0x01,
+
+ .num_device_descs = 1,
+ .devices = {
+ { "Nebula Electronics uDigiTV DVB-T USB2.0)",
+ { &digitv_table[ANCHOR_NEBULA_DIGITV], NULL },
+ { NULL },
+ },
+ { NULL },
+ }
+};
+
+static struct usb_driver digitv_driver = {
+ .name = "dvb_usb_digitv",
+ .probe = digitv_probe,
+ .disconnect = dvb_usb_device_exit,
+ .id_table = digitv_table,
+};
+
+module_usb_driver(digitv_driver);
+
+MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
+MODULE_DESCRIPTION("Driver for Nebula Electronics uDigiTV DVB-T USB2.0");
+MODULE_VERSION("1.0-alpha");
+MODULE_LICENSE("GPL");