Re: High-bandwidth/multiple transactions per microframe in usb audio?

25 Apr 2020


      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
Best regards,
Pavel.