On Sat, Sep 25, 2021 at 04:30:03PM +0200, Pavel Hofman wrote: > EP IN is hard-coded as ASYNC both in f_uac1 and f_uac2 but u_audio sends > steady number of audio frames in each USB packet, without any control. > > This patch adds 'Playback Pitch 1000000' ctl analogous to the existing > 'Capture Pitch 1000000' ctl. The calculation of playback req->length in > u_audio_iso_complete respects the Playback Pitch ctl value to 1ppm now. > > Max. value for Playback Pitch is configured by the existing parameter > uac2_opts->fb_max, used also for the Capture Pitch. > > Since the EP IN packet size can be increased by uac2_opts->fb_max now, > maxPacketSize for the playback direction is calculated by the same > algorithm as for the async capture direction in > f_uac2.c:set_ep_max_packet_size. > > Signed-off-by: Pavel Hofman <pavel.hofman@xxxxxxxxxxx> > --- > drivers/usb/gadget/function/f_uac2.c | 5 +- > drivers/usb/gadget/function/u_audio.c | 93 ++++++++++++++++++++------- > 2 files changed, 74 insertions(+), 24 deletions(-) Does not apply to my tree, what kernel release / branch did you make this against? thanks, greg k-h
