<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-toradex.git/sound/usb, branch v6.8</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>ALSA: usb-audio: More relaxed check of MIDI jack names</title>
<updated>2024-02-15T15:56:05+00:00</updated>
<author>
<name>Takashi Iwai</name>
<email>tiwai@suse.de</email>
</author>
<published>2024-02-15T15:31:44+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=41c25e193b2befc22462aa41591d397fab174ca1'/>
<id>41c25e193b2befc22462aa41591d397fab174ca1</id>
<content type='text'>
The USB audio driver tries to retrieve MIDI jack name strings that can
be used for rawmidi substream names and sequencer port names, but its
checking is too strict: often the firmware provides the jack info for
unexpected directions, and then we miss the info although it's
present.

In this patch, the code to extract the jack info is changed to allow
both in and out directions in a single loop.  That is, the former two
functions to obtain the descriptor pointers for jack in and out are
changed to a single function that returns iJack of the corresponding
jack ID, no matter which direction is used.  It's a code
simplification at the same time as well as the fix.

Fixes: eb596e0fd13c ("ALSA: usb-audio: generate midi streaming substream names from jack names")
Link: https://lore.kernel.org/r/20240215153144.26047-1-tiwai@suse.de
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The USB audio driver tries to retrieve MIDI jack name strings that can
be used for rawmidi substream names and sequencer port names, but its
checking is too strict: often the firmware provides the jack info for
unexpected directions, and then we miss the info although it's
present.

In this patch, the code to extract the jack info is changed to allow
both in and out directions in a single loop.  That is, the former two
functions to obtain the descriptor pointers for jack in and out are
changed to a single function that returns iJack of the corresponding
jack ID, no matter which direction is used.  It's a code
simplification at the same time as well as the fix.

Fixes: eb596e0fd13c ("ALSA: usb-audio: generate midi streaming substream names from jack names")
Link: https://lore.kernel.org/r/20240215153144.26047-1-tiwai@suse.de
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: usb-audio: Ignore clock selector errors for single connection</title>
<updated>2024-02-01T14:29:40+00:00</updated>
<author>
<name>Alexander Tsoy</name>
<email>alexander@tsoy.me</email>
</author>
<published>2024-02-01T11:53:08+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=eaa1b01fe709d6a236a9cec74813e0400601fd23'/>
<id>eaa1b01fe709d6a236a9cec74813e0400601fd23</id>
<content type='text'>
For devices with multiple clock sources connected to a selector, we need
to check what a clock selector control request has returned. This is
needed to ensure that a requested clock source is indeed selected and for
autoclock feature to work.

For devices with single clock source connected, if we get an error there
is nothing else we can do about it. We can't skip clock selector setup as
it is required by some devices. So lets just ignore error in this case.

This should fix various buggy Mackie devices:

[  649.109785] usb 1-1.3: parse_audio_format_rates_v2v3(): unable to find clock source (clock -32)
[  649.111946] usb 1-1.3: parse_audio_format_rates_v2v3(): unable to find clock source (clock -32)
[  649.113822] usb 1-1.3: parse_audio_format_rates_v2v3(): unable to find clock source (clock -32)

There is also interesting info from the Windows documentation [1] (this
is probably why manufacturers dont't even test this feature):

"The USB Audio 2.0 driver doesn't support clock selection. The driver
uses the Clock Source Entity, which is selected by default and never
issues a Clock Selector Control SET CUR request."

Link: https://learn.microsoft.com/en-us/windows-hardware/drivers/audio/usb-2-0-audio-drivers [1]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217314
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218175
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218342
Signed-off-by: Alexander Tsoy &lt;alexander@tsoy.me&gt;
Link: https://lore.kernel.org/r/20240201115308.17838-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
For devices with multiple clock sources connected to a selector, we need
to check what a clock selector control request has returned. This is
needed to ensure that a requested clock source is indeed selected and for
autoclock feature to work.

For devices with single clock source connected, if we get an error there
is nothing else we can do about it. We can't skip clock selector setup as
it is required by some devices. So lets just ignore error in this case.

This should fix various buggy Mackie devices:

[  649.109785] usb 1-1.3: parse_audio_format_rates_v2v3(): unable to find clock source (clock -32)
[  649.111946] usb 1-1.3: parse_audio_format_rates_v2v3(): unable to find clock source (clock -32)
[  649.113822] usb 1-1.3: parse_audio_format_rates_v2v3(): unable to find clock source (clock -32)

There is also interesting info from the Windows documentation [1] (this
is probably why manufacturers dont't even test this feature):

"The USB Audio 2.0 driver doesn't support clock selection. The driver
uses the Clock Source Entity, which is selected by default and never
issues a Clock Selector Control SET CUR request."

Link: https://learn.microsoft.com/en-us/windows-hardware/drivers/audio/usb-2-0-audio-drivers [1]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217314
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218175
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218342
Signed-off-by: Alexander Tsoy &lt;alexander@tsoy.me&gt;
Link: https://lore.kernel.org/r/20240201115308.17838-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: usb-audio: Check presence of valid altsetting control</title>
<updated>2024-01-29T15:46:01+00:00</updated>
<author>
<name>Alexander Tsoy</name>
<email>alexander@tsoy.me</email>
</author>
<published>2024-01-29T12:12:54+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=346f59d1e8ed0eed41c80e1acb657e484c308e6a'/>
<id>346f59d1e8ed0eed41c80e1acb657e484c308e6a</id>
<content type='text'>
Many devices with a single alternate setting do not have a Valid
Alternate Setting Control and validation performed by
validate_sample_rate_table_v2v3() doesn't work on them and is not
really needed. So check the presense of control before sending
altsetting validation requests.

MOTU Microbook IIc is suffering the most without this check. It
takes up to 40 seconds to bootup due to how slow it switches
sampling rates:

[ 2659.164824] usb 3-2: New USB device found, idVendor=07fd, idProduct=0004, bcdDevice= 0.60
[ 2659.164827] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 2659.164829] usb 3-2: Product: MicroBook IIc
[ 2659.164830] usb 3-2: Manufacturer: MOTU
[ 2659.166204] usb 3-2: Found last interface = 3
[ 2679.322298] usb 3-2: No valid sample rate available for 1:1, assuming a firmware bug
[ 2679.322306] usb 3-2: 1:1: add audio endpoint 0x3
[ 2679.322321] usb 3-2: Creating new data endpoint #3
[ 2679.322552] usb 3-2: 1:1 Set sample rate 96000, clock 1
[ 2684.362250] usb 3-2: 2:1: cannot get freq (v2/v3): err -110
[ 2694.444700] usb 3-2: No valid sample rate available for 2:1, assuming a firmware bug
[ 2694.444707] usb 3-2: 2:1: add audio endpoint 0x84
[ 2694.444721] usb 3-2: Creating new data endpoint #84
[ 2699.482103] usb 3-2: 2:1 Set sample rate 96000, clock 1

Signed-off-by: Alexander Tsoy &lt;alexander@tsoy.me&gt;
Link: https://lore.kernel.org/r/20240129121254.3454481-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Many devices with a single alternate setting do not have a Valid
Alternate Setting Control and validation performed by
validate_sample_rate_table_v2v3() doesn't work on them and is not
really needed. So check the presense of control before sending
altsetting validation requests.

MOTU Microbook IIc is suffering the most without this check. It
takes up to 40 seconds to bootup due to how slow it switches
sampling rates:

[ 2659.164824] usb 3-2: New USB device found, idVendor=07fd, idProduct=0004, bcdDevice= 0.60
[ 2659.164827] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 2659.164829] usb 3-2: Product: MicroBook IIc
[ 2659.164830] usb 3-2: Manufacturer: MOTU
[ 2659.166204] usb 3-2: Found last interface = 3
[ 2679.322298] usb 3-2: No valid sample rate available for 1:1, assuming a firmware bug
[ 2679.322306] usb 3-2: 1:1: add audio endpoint 0x3
[ 2679.322321] usb 3-2: Creating new data endpoint #3
[ 2679.322552] usb 3-2: 1:1 Set sample rate 96000, clock 1
[ 2684.362250] usb 3-2: 2:1: cannot get freq (v2/v3): err -110
[ 2694.444700] usb 3-2: No valid sample rate available for 2:1, assuming a firmware bug
[ 2694.444707] usb 3-2: 2:1: add audio endpoint 0x84
[ 2694.444721] usb 3-2: Creating new data endpoint #84
[ 2699.482103] usb 3-2: 2:1 Set sample rate 96000, clock 1

Signed-off-by: Alexander Tsoy &lt;alexander@tsoy.me&gt;
Link: https://lore.kernel.org/r/20240129121254.3454481-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Revert "ALSA: usb-audio: Skip setting clock selector for single connections"</title>
<updated>2024-01-29T08:07:57+00:00</updated>
<author>
<name>Alexander Tsoy</name>
<email>alexander@tsoy.me</email>
</author>
<published>2024-01-28T13:23:38+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=c0787fcff88bce36d21e5b726bdeab694baba6a5'/>
<id>c0787fcff88bce36d21e5b726bdeab694baba6a5</id>
<content type='text'>
This reverts commit 67794f882adca00d043899ac248bc002751da9f6.

We need to explicitly set up the clock selector to workaround a problem
with the Behringer mixers. This was originally done in d2e8f641257d
("ALSA: usb-audio: Explicitly set up the clock selector")

The problem with MOTU M Series mentioned in commit message was fixed in
a different way by checking control capabilities of clock selectors.

Signed-off-by: Alexander Tsoy &lt;alexander@tsoy.me&gt;
Link: https://lore.kernel.org/r/20240128132338.819273-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This reverts commit 67794f882adca00d043899ac248bc002751da9f6.

We need to explicitly set up the clock selector to workaround a problem
with the Behringer mixers. This was originally done in d2e8f641257d
("ALSA: usb-audio: Explicitly set up the clock selector")

The problem with MOTU M Series mentioned in commit message was fixed in
a different way by checking control capabilities of clock selectors.

Signed-off-by: Alexander Tsoy &lt;alexander@tsoy.me&gt;
Link: https://lore.kernel.org/r/20240128132338.819273-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: usb-audio: Support read-only clock selector control</title>
<updated>2024-01-26T15:07:32+00:00</updated>
<author>
<name>Alexander Tsoy</name>
<email>alexander@tsoy.me</email>
</author>
<published>2024-01-25T20:54:57+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=eeca59a6e8e610e593d17e12f67324c615ec5ef2'/>
<id>eeca59a6e8e610e593d17e12f67324c615ec5ef2</id>
<content type='text'>
Clock selector control might be read-only. Add corresponding checks
to prevent sending control requests that would fail.

Signed-off-by: Alexander Tsoy &lt;alexander@tsoy.me&gt;
Link: https://lore.kernel.org/r/20240125205457.28258-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Clock selector control might be read-only. Add corresponding checks
to prevent sending control requests that would fail.

Signed-off-by: Alexander Tsoy &lt;alexander@tsoy.me&gt;
Link: https://lore.kernel.org/r/20240125205457.28258-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: usb-audio: Sort quirk table entries</title>
<updated>2024-01-24T15:57:11+00:00</updated>
<author>
<name>Takashi Iwai</name>
<email>tiwai@suse.de</email>
</author>
<published>2024-01-24T15:53:07+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=668abe6dc7b61941fa5c724c06797efb0b87f070'/>
<id>668abe6dc7b61941fa5c724c06797efb0b87f070</id>
<content type='text'>
The quirk table entries should be put in the USB ID order, but some
entries have been put in random places.  Re-sort them.

Fixes: bf990c102319 ("ALSA: usb-audio: add quirk to fix Hamedal C20 disconnect issue")
Fixes: fd28941cff1c ("ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless")
Fixes: dfd5fe19db7d ("ALSA: usb-audio: Add FIXED_RATE quirk for JBL Quantum610 Wireless")
Fixes: 4a63e68a2951 ("ALSA: usb-audio: Fix microphone sound on Nexigo webcam.")
Fixes: 7822baa844a8 ("ALSA: usb-audio: add quirk for RODE NT-USB+")
Fixes: 4fb7c24f69c4 ("ALSA: usb-audio: Add quirk for Fiero SC-01")
Fixes: 2307a0e1ca0b ("ALSA: usb-audio: Add quirk for Fiero SC-01 (fw v1.0.0)")
Link: https://lore.kernel.org/r/20240124155307.16996-1-tiwai@suse.de
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The quirk table entries should be put in the USB ID order, but some
entries have been put in random places.  Re-sort them.

Fixes: bf990c102319 ("ALSA: usb-audio: add quirk to fix Hamedal C20 disconnect issue")
Fixes: fd28941cff1c ("ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless")
Fixes: dfd5fe19db7d ("ALSA: usb-audio: Add FIXED_RATE quirk for JBL Quantum610 Wireless")
Fixes: 4a63e68a2951 ("ALSA: usb-audio: Fix microphone sound on Nexigo webcam.")
Fixes: 7822baa844a8 ("ALSA: usb-audio: add quirk for RODE NT-USB+")
Fixes: 4fb7c24f69c4 ("ALSA: usb-audio: Add quirk for Fiero SC-01")
Fixes: 2307a0e1ca0b ("ALSA: usb-audio: Add quirk for Fiero SC-01 (fw v1.0.0)")
Link: https://lore.kernel.org/r/20240124155307.16996-1-tiwai@suse.de
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: usb-audio: add quirk for RODE NT-USB+</title>
<updated>2024-01-24T15:28:59+00:00</updated>
<author>
<name>Sean Young</name>
<email>sean@mess.org</email>
</author>
<published>2024-01-24T15:15:24+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=7822baa844a87cbb93308c1032c3d47d4079bb8a'/>
<id>7822baa844a87cbb93308c1032c3d47d4079bb8a</id>
<content type='text'>
The RODE NT-USB+ is marketed as a professional usb microphone, however the
usb audio interface is a mess:

[    1.130977] usb 1-5: new full-speed USB device number 2 using xhci_hcd
[    1.503906] usb 1-5: config 1 has an invalid interface number: 5 but max is 4
[    1.503912] usb 1-5: config 1 has no interface number 4
[    1.519689] usb 1-5: New USB device found, idVendor=19f7, idProduct=0035, bcdDevice= 1.09
[    1.519695] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    1.519697] usb 1-5: Product: RØDE NT-USB+
[    1.519699] usb 1-5: Manufacturer: RØDE
[    1.519700] usb 1-5: SerialNumber: 1D773A1A
[    8.327495] usb 1-5: 1:1: cannot get freq at ep 0x82
[    8.344500] usb 1-5: 1:2: cannot get freq at ep 0x82
[    8.365499] usb 1-5: 2:1: cannot get freq at ep 0x2

Add QUIRK_FLAG_GET_SAMPLE_RATE to work around the broken sample rate get.
I have asked Rode support to fix it, but they show no interest.

Signed-off-by: Sean Young &lt;sean@mess.org&gt;
Cc: &lt;stable@vger.kernel.org&gt;
Link: https://lore.kernel.org/r/20240124151524.23314-1-sean@mess.org
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The RODE NT-USB+ is marketed as a professional usb microphone, however the
usb audio interface is a mess:

[    1.130977] usb 1-5: new full-speed USB device number 2 using xhci_hcd
[    1.503906] usb 1-5: config 1 has an invalid interface number: 5 but max is 4
[    1.503912] usb 1-5: config 1 has no interface number 4
[    1.519689] usb 1-5: New USB device found, idVendor=19f7, idProduct=0035, bcdDevice= 1.09
[    1.519695] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    1.519697] usb 1-5: Product: RØDE NT-USB+
[    1.519699] usb 1-5: Manufacturer: RØDE
[    1.519700] usb 1-5: SerialNumber: 1D773A1A
[    8.327495] usb 1-5: 1:1: cannot get freq at ep 0x82
[    8.344500] usb 1-5: 1:2: cannot get freq at ep 0x82
[    8.365499] usb 1-5: 2:1: cannot get freq at ep 0x2

Add QUIRK_FLAG_GET_SAMPLE_RATE to work around the broken sample rate get.
I have asked Rode support to fix it, but they show no interest.

Signed-off-by: Sean Young &lt;sean@mess.org&gt;
Cc: &lt;stable@vger.kernel.org&gt;
Link: https://lore.kernel.org/r/20240124151524.23314-1-sean@mess.org
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: usb-audio: Add delay quirk for MOTU M Series 2nd revision</title>
<updated>2024-01-24T13:41:54+00:00</updated>
<author>
<name>Alexander Tsoy</name>
<email>alexander@tsoy.me</email>
</author>
<published>2024-01-24T13:02:39+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=d915a6850e27efb383cd4400caadfe47792623df'/>
<id>d915a6850e27efb383cd4400caadfe47792623df</id>
<content type='text'>
Audio control requests that sets sampling frequency sometimes fail on
this card. Adding delay between control messages eliminates that problem.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=217601
Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Alexander Tsoy &lt;alexander@tsoy.me&gt;
Link: https://lore.kernel.org/r/20240124130239.358298-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Audio control requests that sets sampling frequency sometimes fail on
this card. Adding delay between control messages eliminates that problem.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=217601
Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Alexander Tsoy &lt;alexander@tsoy.me&gt;
Link: https://lore.kernel.org/r/20240124130239.358298-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: usb-audio: fix typo</title>
<updated>2024-01-24T13:40:47+00:00</updated>
<author>
<name>Jacob Siverskog</name>
<email>jacob@teenage.engineering</email>
</author>
<published>2024-01-24T10:18:24+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=7c4298534ce3c4b85099aba53442ec82ef17578b'/>
<id>7c4298534ce3c4b85099aba53442ec82ef17578b</id>
<content type='text'>
fix typo in midi fallback log.

Signed-off-by: Jacob Siverskog &lt;jacob@teenage.engineering&gt;
Fixes: ff49d1df79ae ("ALSA: usb-audio: USB MIDI 2.0 UMP support")
Link: https://lore.kernel.org/r/20240124101827.35433-1-jacob@teenage.engineering
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
fix typo in midi fallback log.

Signed-off-by: Jacob Siverskog &lt;jacob@teenage.engineering&gt;
Fixes: ff49d1df79ae ("ALSA: usb-audio: USB MIDI 2.0 UMP support")
Link: https://lore.kernel.org/r/20240124101827.35433-1-jacob@teenage.engineering
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: usb-audio: Skip setting clock selector for single connections</title>
<updated>2024-01-23T14:10:25+00:00</updated>
<author>
<name>Alexander Tsoy</name>
<email>alexander@tsoy.me</email>
</author>
<published>2024-01-23T13:46:35+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=67794f882adca00d043899ac248bc002751da9f6'/>
<id>67794f882adca00d043899ac248bc002751da9f6</id>
<content type='text'>
Since commit 086b957cc17f5 ("ALSA: usb-audio: Skip the clock selector
inquiry for single connections") we are already skipping clock selector
inquiry if only one clock source is connected, but we are still sending
a set request. Lets skip that too.

This should fix errors when setting a sample rate on devices that don't
have any controls present within the clock selector. An example of such
device is the new revision of MOTU M Series (07fd:000b):

      AudioControl Interface Descriptor:
        bLength                 8
        bDescriptorType        36
        bDescriptorSubtype     11 (CLOCK_SELECTOR)
        bClockID                1
        bNrInPins               1
        baCSourceID(0)          2
        bmControls           0x00
        iClockSelector          0

Perhaps we also should check if clock selectors are readable and writeable
like we already do for clock sources, but this is out of scope of this
patch.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=217601
Signed-off-by: Alexander Tsoy &lt;alexander@tsoy.me&gt;
Link: https://lore.kernel.org/r/20240123134635.54026-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Since commit 086b957cc17f5 ("ALSA: usb-audio: Skip the clock selector
inquiry for single connections") we are already skipping clock selector
inquiry if only one clock source is connected, but we are still sending
a set request. Lets skip that too.

This should fix errors when setting a sample rate on devices that don't
have any controls present within the clock selector. An example of such
device is the new revision of MOTU M Series (07fd:000b):

      AudioControl Interface Descriptor:
        bLength                 8
        bDescriptorType        36
        bDescriptorSubtype     11 (CLOCK_SELECTOR)
        bClockID                1
        bNrInPins               1
        baCSourceID(0)          2
        bmControls           0x00
        iClockSelector          0

Perhaps we also should check if clock selectors are readable and writeable
like we already do for clock sources, but this is out of scope of this
patch.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=217601
Signed-off-by: Alexander Tsoy &lt;alexander@tsoy.me&gt;
Link: https://lore.kernel.org/r/20240123134635.54026-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</pre>
</div>
</content>
</entry>
</feed>
