Dear list administrator,
please remove dmitry@xxxxxxxxxxxx from this list.
Kind regards,
Dmitry Panchenko
d-Systems OÜ
Ⓐ Lai 6, Tartu 51005, Estonia
Ⓦ www.d-systems.ee <http://www.d-systems.ee>
On 24.03.21 14:03, Ikjoon Jang wrote:
On Wed, Mar 24, 2021, 7:16 PM Joakim Tjernlund
<Joakim.Tjernlund@xxxxxxxxxxxx <mailto:Joakim.Tjernlund@xxxxxxxxxxxx>>
wrote:
On Wed, 2021-03-24 at 18:51 +0800, Ikjoon Jang wrote:
> Logitech ConferenceCam Connect is a compound USB device with UVC and
> UAC. Not 100% reproducible but sometimes it keeps responding
STALL to
> every control transfer once it receives get_freq request.
>
> This patch adds 046d:0x084c to a snd_usb_get_sample_rate_quirk list.
>
> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=203419
> Signed-off-by: Ikjoon Jang <ikjn@xxxxxxxxxxxx
<mailto:ikjn@xxxxxxxxxxxx>>
Most Logitech USB headset I got needs a delay in
snd_usb_ctl_msg_quirk()
Have you tried to add say 20 ms delay in there?
I didn't try that. But it sounds reasonable to me.
let me try that quirk here. If that is the case, HID might need that
delay also. Logitech Group webcam had a similar problem on control
xfer of get_report from an another interface for HID.
And 20ms can be too long if it's applied to every control transfer. I
will test the device with shorter delay if you didn't try it before.
Any additional advice is welcome.
Thanks!
Jocke
