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| author | Pavel Hofman <pavel.hofman@ivitera.com> | 2022-01-21 16:53:07 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-26 14:06:09 +0100 |
| commit | 7ff4a3b5489959a0256840a361b54d979b822535 (patch) | |
| tree | be6c7a996aca7c4798c7e360403f4e4e1abc144e /kernel/async.c | |
| parent | 62385cf158a7e65b5f347590521d02ee75dc8518 (diff) | |
| download | linux-7ff4a3b5489959a0256840a361b54d979b822535.tar.bz2 | |
usb: gadget: f_uac2: Add suspend callback
When USB cable gets disconnected, the undergoing playback/capture
stalls, without any notification to u_audio about the change.
Experiments with a dwc2 gadget revealed that Suspend interrupt is
thrown at cable disconnection, which the gadget framework translates to
calling suspend callback of a function, if it is defined.
Add the suspend callback to f_uac2 function, calling
corresponding method of u_audio in order to stop the respective PCM
streams and to notify subscribed clients at cable disconnection.
Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Link: https://lore.kernel.org/r/20220121155308.48794-10-pavel.hofman@ivitera.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/async.c')
0 files changed, 0 insertions, 0 deletions