Comments (2)
xairy
commented on June 18, 2024
Hi,
Hm, I believe this is functioning as intended.
One USB_RAW_IOCTL_EP_READ call queues one request via usb_ep_queue(). However, the request might be filled with multiple packets. See the comment for usb_ep_queue() and its implementation for net2280 (as an example).
I don't think we need any changes in Raw Gadget. However, USB proxy needs to be aware of this behavior.
Thanks!
from raw-gadget.
lmirel
commented on June 18, 2024
Thanks, I adapted the USB proxy implementation to process one packet at a time based on endpoint wMaxPacketSize and it works as expected. The flow fails on Rapsberry PI4 after a while and I was hoping there was something that could be done on the kernel driver side but couldn't find anything useful so far.
from raw-gadget.
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