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2019-11-14ALSA: usb-audio: Fix incorrect NULL check in create_yamaha_midi_quirk()Takashi Iwai1-2/+2
The commit 60849562a5db ("ALSA: usb-audio: Fix possible NULL dereference at create_yamaha_midi_quirk()") added NULL checks in create_yamaha_midi_quirk(), but there was an overlook. The code allows one of either injd or outjd is NULL, but the second if check made returning -ENODEV if any of them is NULL. Fix it in a proper form. Fixes: 60849562a5db ("ALSA: usb-audio: Fix possible NULL dereference at create_yamaha_midi_quirk()") Reported-by: Pavel Machek <pavel@denx.de> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20191113111259.24123-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-10-24ALSA: usb-audio: Add DSD support for Gustard U16/X26 USB InterfaceJustin Song1-0/+1
This patch adds native DSD support for Gustard U16/X26 USB Interface. Tested using VID and fp->dsd_raw method. Signed-off-by: Justin Song <flyingecar@gmail.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/CA+9XP1ipsFn+r3bCBKRinQv-JrJ+EHOGBdZWZoMwxFv0R8Y1MQ@mail.gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-09-24ALSA: usb-audio: Add DSD support for EVGA NU AudioJussi Laako1-0/+1
EVGA NU Audio is actually a USB audio device on a PCIexpress card, with it's own USB controller. It supports both PCM and DSD. Signed-off-by: Jussi Laako <jussi@sonarnerd.net> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20190924071143.30911-1-jussi@sonarnerd.net Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-09-17ALSA: usb-audio: Add Hiby device family to quirks for native DSD supportIlya Pshonkin1-0/+1
This patch adds quirk VID ID for Hiby portable players family with native DSD playback support. Signed-off-by: Ilya Pshonkin <sudokamikaze@protonmail.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20190917074937.157802-1-ilya.pshonkin@netforce.ua Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-28ALSA: usb-audio: Update DSD support quirks for Oppo and RotelJussi Laako1-4/+2
Oppo has issued firmware updates that change alt setting used for DSD support. However, these devices seem to support auto-detection, so support is moved from explicit whitelisting to auto-detection. Also Rotel devices have USB interfaces that support DSD with auto-detection. Signed-off-by: Jussi Laako <jussi@sonarnerd.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-28ALSA: usb-audio: DSD auto-detection for Playback DesignsJussi Laako1-2/+4
Add DSD support auto-detection for newer Playback Designs devices. Older device generations have a different USB interface implementation. Keep the auto-detection VID whitelist sorted. Signed-off-by: Jussi Laako <jussi@sonarnerd.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-26ALSA: usb-audio: Fix possible NULL dereference at create_yamaha_midi_quirk()Takashi Iwai1-2/+2
The previous addition of descriptor validation may lead to a NULL dereference at create_yamaha_midi_quirk() when either injd or outjd is NULL. Add proper non-NULL checks. Fixes: 57f8770620e9 ("ALSA: usb-audio: More validations of descriptor units") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-22ALSA: usb-audio: More validations of descriptor unitsTakashi Iwai1-0/+3
Introduce a new helper to validate each audio descriptor unit before and check the unit before actually accessing it. This should harden against the OOB access cases with malformed descriptors that have been recently frequently reported by fuzzers. The existing descriptor checks are still kept although they become superfluous after this patch. They'll be cleaned up eventually later. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-08Merge tag 'asoc-v5.3' of ↵Takashi Iwai1-13/+1
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Updates for v5.3 This is a very big update, mainly thanks to Morimoto-san's refactoring work and some fairly large new drivers. - Lots more work on moving towards a component based framework from Morimoto-san. - Support for force disconnecting muxes from Jerome Brunet. - New drivers for Cirrus Logic CS47L35, CS47L85 and CS47L90, Conexant CX2072X, Realtek RT1011 and RT1308. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-06-24ALSA: usb-audio: Sanity checks for each pipe and EP typesTakashi Iwai1-3/+15
The recent USB core code performs sanity checks for the given pipe and EP types, and it can be hit by manipulated USB descriptors by syzbot. For making syzbot happier, this patch introduces a local helper for a sanity check in the driver side and calls it at each place before the message handling, so that we can avoid the WARNING splats. Reported-by: syzbot+d952e5e28f5fb7718d23@syzkaller.appspotmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156Thomas Gleixner1-13/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-28ALSA: usb-audio: Add quirk for MOTU MicroBook IIManuel Reinhardt1-0/+101
Add an entry to the quirks-table to for usb-audio to recognize the Microbook II (although it only exposes vendor interfaces). A simple boot quirk is also implemented to set up the sample rate and make sure that no audio urbs are sent before the device is ready. This patch only provides audio playback and capture at 96kHz sample rate. Notice the following shortcomings: - The sample rate is currently hardcoded to 96k although the device also supports 48k and 44.1k. - The various mixer controls of the MicroBook are not made available. - The keep-iface control should be on by default because the device shuts down whenever the altsetting is reset which is usually unwanted. (I don't know the best way to do this) - The communication format used by the MicroBook for sample rate setting and also other setup has been reverse engineered by looking at the usbmon output while running the windows driver through virtualbox. In this patch the first byte of every message is set to \0 while in the observed communications the first byte acts as a "message-counter" increasing its value with every message sent. Leaving it at \0 does not seem to affect the device. Signed-off-by: Manuel Reinhardt <manuel.rhdt@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-02-08Merge branch 'for-linus' into for-nextTakashi Iwai1-0/+1
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-02-05ALSA: usb-audio: Add support for new T+A USB DACUdo Eberhardt1-0/+1
This patch adds the T+A VID to the generic check in order to enable native DSD support for T+A devices. This works with the new T+A USB DAC model SD3100HV and will also work with future devices which support the XMOS/Thesycon style DSD format. Signed-off-by: Udo Eberhardt <udo.eberhardt@thesycon.de> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-01-29ALSA: usb-audio: Cleanup DSD whitelistJussi Laako1-16/+2
XMOS/Thesycon family of USB Audio Class firmware flags DSD altsetting separate from the PCM ones. Thus the DSD altsetting can be auto-detected based on the flag and doesn't need maintaining specific altsetting whitelist. In addition, static VID:PID-to-altsetting whitelisting causes problems when firmware update changes the altsetting, or same VID:PID is reused for another device that has different kind of firmware. This patch removes existing explicit whitelist mappings for XMOS VID (0x20b1) and Thesycon VID (0x152a). Also corrects placement of Hegel HD12 and NuPrime DAC-10 to keep list sorted based on VID. Signed-off-by: Jussi Laako <jussi@sonarnerd.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-01-25ALSA: usb-audio: Add Opus #3 to quirks for native DSD supportOlek Poplavsky1-0/+1
This patch adds quirk VID/PID IDs for the Opus #3 DAP (made by 'The Bit') in order to enable Native DSD support. [ NOTE: this could be handled in the generic way with fp->dvd_raw if we add 0x10cb to the vendor whitelist, but since 0x10cb shows a different vendor name (Erantech), put to the individual entry at this time -- tiwai ] Signed-off-by: Olek Poplavsky <woodenbits@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-01-08ALSA: usb-audio: fix CM6206 register definitionsAmadeusz Sławiński1-1/+1
fix typo after a recent commit causing headphones to have no sound Fixes: ad43d528a7ac (ALSA: usb-audio: Define registers for CM6206) Signed-off-by: Amadeusz Sławiński <amade@asmblr.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-12-07Merge branch 'for-linus' into for-nextTakashi Iwai1-0/+1
Back-merge for applying the more HD-audio quirks on top of the latest code. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-29ALSA: usb-audio: Add SMSL D1 to quirks for native DSD supportTony Das1-0/+1
This patch adds quirk VID/PID IDs for the SMSL D1 in order to enable Native DSD support. [ Moved the added entry in numerical order -- tiwai ] Signed-off-by: Tony Das <tdas444@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-06ALSA: usb-audio: Define registers for CM6206Linus Walleij1-5/+124
The register map for CM6206 is known and we can define what the values written to the different registers actually mean. I tested to print the hex values before/after this change, there is no functional change. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-07-27ALSA: usb-audio: quirks: Replace mdelay() with msleep() and usleep_range()Jia-Ju Bai1-7/+7
snd_usb_select_mode_quirk(), snd_usb_set_interface_quirk() and snd_usb_ctl_msg_quirk() are never called in atomic context. They call mdelay() to busily wait, which is not necessary. mdelay() can be replaced with msleep() and usleep_range(). This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-07-26ALSA: usb-audio: Add support for Encore mDSD USB DACJeff Crukley1-0/+1
This patch adds native DSD playback support for the Encore mDSD USB DAC by specifying the vendor and product ID's Signed-off-by: Jeff Crukley <jcrukley@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-07-23ALSA: usb-audio: Generic DSD detection for Thesycon-based implementationsYue Wang1-0/+1
Thesycon provides solutions to XMOS chips, and has its own device vendor id. In this patch, we use generic method to detect DSD capability of Thesycon-based UAC2 implementations in order to support a wide range of current and future devices. The patch will enable the SNDRV_PCM_FMTBIT_DSD_U32_BE bit for the DAC hence enable native DSD playback up to DSD512 format. Signed-off-by: Yue Wang <yuleopen@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-06-13ALSA: usb-audio: Remove explicitly listed Mytek devicesJussi Laako1-3/+0
Remove explicitly listed Mytek devices covered by the more generic DSD detection method. Signed-off-by: Jussi Laako <jussi@sonarnerd.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-06-13ALSA: usb-audio: Generic DSD detection for XMOS-based implementationsJussi Laako1-2/+1
Use more generic method to detect DSD capability of XMOS-based UAC2 implementations in order to support future devices without having to explicitly list every device separately. Signed-off-by: Jussi Laako <jussi@sonarnerd.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-06-13ALSA: usb-audio: Add native DSD support for Mytek DACsJussi Laako1-0/+13
Add new mostly generic code with Mytek VID to support native DSD mode. This implementation should be easier to maintain when manufacturers release new products. Signed-off-by: Jussi Laako <jussi@sonarnerd.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-05-13ALSA: usb-audio: add boot quirk for Axe-Fx IIIAlberto Aguirre1-0/+32
Wait for Axe-Fx III to fully bootup before initializing card. Signed-off-by: Alberto Aguirre <albaguirre@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-04-23ALSA: usb-audio: add more quirks for DSD interfacesDaniel Mack1-0/+27
Based on a downstream patch from Harry ten Berge. Signed-off-by: Daniel Mack <daniel@zonque.org> Reported-and-tested-by: wenyi@tianyu-wool.com Original-by: Harry ten Berge <htenberge@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-03-23ALSA: usb-audio: Integrate native DSD support for ITF-USB based DACs.Nobutaka Okabe1-61/+23
Integrate the native DSD support quirk codes of "ITF-USB DSD" based DACs. Now, "is_itf_usb_dsd_2alts_dac()" and "is_itf_usb_dsd_3alts_dac()" is integrated into one function "is_itf_usb_dsd_dac()". So, remove the logic to distinguish UD-501 and UD-501V2 by the "Product Name". The integration is possible by changing the following two functions. - snd_usb_select_mode_quirk(): Change the determination condition of the DSD mode switch command, from the altset number being used, to the audio format being played. Actually, this operation is same as playback using ASIO driver in Windows environment. - snd_usb_interface_dsd_format_quirk(): To which altset supports native DSD is determined by the number of altsets. Previously, it's a constant "2" or "3". Signed-off-by: Nobutaka Okabe <nob77413@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-03-23ALSA: usb-audio: FIX native DSD support for TEAC UD-501 DACNobutaka Okabe1-10/+27
There are two versions of TEAC UD-501, the normal version and the vendor updated version(UD-501V2). They have the same VID/PID, but the num of the altsetting is different, UD-501 has 2 altsets for stream, and UD-501V2 has 3. So, add the logic to distinguish them by the Product Name, not by the PID. Signed-off-by: Nobutaka Okabe <nob77413@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-03-23ALSA: usb-audio: Add native DSD support for Luxman DA-06Nobutaka Okabe1-13/+16
Add native DSD support quirk for Luxman DA-06 DAC, by adding the PID/VID 1852:5065. Rename "is_marantz_denon_dac()" function to "is_itf_usb_dsd_2alts_dac()" to cover broader device family sharing the same USB audio implementation(*). For the same reason, rename "is_teac_dsd_dac()" function to "is_itf_usb_dsd_3alts_dac()". (*) These devices have the same USB controller "ITF-USB DSD", supplied by INTERFACE Co., Ltd. "ITF-USB DSD" USB controller has two patterns, Pattern 1. (2 altsets version) - Altset 0: for control - Altset 1: for stream (S32) - Altset 2: for stream (S32, DSD_U32) Pattern 2. (3 altsets version) - Altset 0: for control - Altset 1: for stream (S16) - Altset 2: for stream (S32) - Altset 3: for stream (S32, DSD_U32) "is_itf_usb_dsd_2alts_dac()" returns true, if the DAC has "Pattern 1" USB controller, and "is_itf_usb_dsd_3alts_dac()" returns true, if "Pattern2". Signed-off-by: Nobutaka Okabe <nob77413@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-03-23Merge branch 'for-linus' into for-nextTakashi Iwai1-0/+1
Back-merge for applying more series of fixes for USB DSD support. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-03-23ALSA: usb-audio: Add native DSD support for TEAC UD-301Nobutaka Okabe1-0/+1
Add native DSD support quirk for TEAC UD-301 DAC, by adding the PID/VID 0644:804a. Signed-off-by: Nobutaka Okabe <nob77413@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-03-19ALSA: usb-audio: move audioformat quirks to quirks.cRuslan Bilovol1-0/+34
Offload USB audio interface parsing function by moving quirks to a specially designed location (quirks.c) Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-02-12ALSA: usb: add more device quirks for USB DSD devicesDaniel Mack1-2/+5
Add some more devices that need quirks to handle DSD modes correctly. Signed-off-by: Daniel Mack <daniel@zonque.org> Reported-and-tested-by: Thomas Gresens <tgresens@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-12-07ALSA: usb-audio: Add native DSD support for Esoteric D-05XJussi Laako1-3/+4
Adds VID:PID of Esoteric D-05X to the TEAC device id's. Renames the is_teac_50X_dac() function to is_teac_dsd_dac() to cover broader device family from the same corporation sharing the same USB audio implementation. Signed-off-by: Jussi Laako <jussi@sonarnerd.net> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-11-13Merge branch 'for-next' into for-linusTakashi Iwai1-15/+9
Pull 4.15 updates to take over the previous urgent fixes. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-11-02ALSA: usb-audio: support new Amanero Combo384 firmware versionJussi Laako1-0/+1
Support DSD_U32_BE sample format on new Amanero Combo384 firmware version on older VID/PID. Fixes: 3eff682d765b ("ALSA: usb-audio: Support both DSD LE/BE Amanero firmware versions") Signed-off-by: Jussi Laako <jussi@sonarnerd.net> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-10-16ALSA: usb-audio: Add native DSD support for Pro-Ject Pre Box S2 DigitalJussi Laako1-0/+1
Add native DSD support quirk for Pro-Ject Pre Box S2 Digital USB id 2772:0230. Signed-off-by: Jussi Laako <jussi@sonarnerd.net> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-10-09ALSA: usb-audio: Apply vendor ID matching for sample rate quirkTakashi Iwai1-15/+9
So far, lots of Plantronics, MS and Phoenix Audio devices need the quirk not to read sample rate back, and the list just grows. In this patch, instead of adding each device, apply the quirk by matching with these vendors. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-10-09ALSA: usb-audio: Add sample rate quirk for Plantronics P610Kai-Heng Feng1-0/+1
Like other Plantronics devices, P610 does not support sample rate reading. Apply sample rate quirk to it. BugLink: https://bugs.launchpad.net/bugs/1719853 Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-09-20ALSA: usb-audio: Add sample rate quirk for Plantronics C310/C520-MKai-Heng Feng1-0/+2
Like other Plantronics devices, C310 and C520-M do not support sample rate reading. Add them to the sample rate quirk accordingly. BugLink: https://bugs.launchpad.net/bugs/1708499 BugLink: https://bugs.launchpad.net/bugs/1709282 Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-08-22Merge branch 'for-linus' into for-nextTakashi Iwai1-3/+11
Conflicts: sound/core/control.c
2017-08-22ALSA: usb-audio: Add delay quirk for H650e/Jabra 550a USB headsetsJoakim Tjernlund1-3/+6
These headsets reports a lot of: cannot set freq 44100 to ep 0x81 and need a small delay between sample rate settings, just like Zoom R16/24. Add both headsets to the Zoom R16/24 quirk for a 1 ms delay between control msgs. Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-08-18ALSA: usb-audio: add DSD support for new Amanero PIDJussi Laako1-0/+4
Add DSD support for new Amanero Combo384 firmware version with a new PID. This firmware uses DSD_U32_BE. Fixes: 3eff682d765b ("ALSA: usb-audio: Support both DSD LE/BE Amanero firmware versions") Signed-off-by: Jussi Laako <jussi@sonarnerd.net> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-08-15ALSA: usb-audio: Apply sample rate quirk to Sennheiser headsetTakashi Iwai1-0/+1
A Senheisser headset requires the typical sample-rate quirk for avoiding spurious errors from inquiring the current sample rate like: usb 1-1: 2:1: cannot get freq at ep 0x4 usb 1-1: 3:1: cannot get freq at ep 0x83 The USB ID 1395:740a has to be added to the entries in snd_usb_get_sample_rate_quirk(). Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1052580 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-08-12ALSA: usb: Delete an error message for a failed memory allocation in two ↵Markus Elfring1-3/+2
functions Omit an extra message for a memory allocation failure in these functions. This issue was detected by using the Coccinelle software. Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-05-15ALSA: usb-audio: fix Amanero Combo384 quirk on big-endian hostsJohan Hovold1-1/+1
Add missing endianness conversion when using the USB device-descriptor bcdDevice field when applying the Amanero Combo384 (endianness!) quirk. Fixes: 3eff682d765b ("ALSA: usb-audio: Support both DSD LE/BE Amanero firmware versions") Cc: Jussi Laako <jussi@sonarnerd.net> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-25Merge branch 'topic/intel-lpe-audio' into for-nextTakashi Iwai1-0/+1
2017-01-10ALSA: usb-audio: Add a quirk for Plantronics BT600Dennis Kadioglu1-0/+1
Plantronics BT600 does not support reading the sample rate which leads to many lines of "cannot get freq at ep 0x1" and "cannot get freq at ep 0x82". This patch adds the USB ID of the BT600 to quirks.c and avoids those error messages. Signed-off-by: Dennis Kadioglu <denk@post.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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