В Сб, 25/04/2020 в 20:06 +0200, Pavel Hofman пишет: > Dne 25. 04. 20 v 14:06 Alexander Tsoy napsal(a): > > В Пт, 24/04/2020 в 11:42 +0200, Pavel Hofman пишет: > > > Hi, > > > > > > Please does the current USB audio driver support multiple > > > transactions > > > per microframe (high-bandwidth mode)? I could not find it in > > > endpoint.c > > > but it may be there or somewhere else :-) > > > > This should be transparent for the driver. See usb_submit_urb() > > function from drivers/usb/core/urb.c. It allows packets larger than > > 1024 for isochronous transfers over High Speed and Super Speed > > buses. > > Alexander, thanks a lot for the info and hint, indeed at > https://github.com/torvalds/linux/blob/master/drivers/usb/core/urb.c#L444 > And I just noticed that USB-audio driver can't properly parse max packet size for SuperSpeed and SuperSpeed+ devices yet. See audio_format_alloc_init().
