On 05/17/16 18:53, Karl Denninger wrote:
If this is a condition of some sort in the device or driver I've not
been able to figure out what it is, or how to force it to clear -- or to
prove whether it's in the device or the ugen driver.

Any ideas?

Hi,

The most easy way to know this for sure, is to check the real data traffic using usbdump:

usbdump -i usbusX -f Y -s 65536 -vvv

My guess is there is some data toggle issue, and that the USB stack tries to clear some error using a clear-stall command, which possibly your device does not handle properly.

--HPS
_______________________________________________
freebsd-usb@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/freebsd-usb
To unsubscribe, send any mail to "freebsd-usb-unsubscr...@freebsd.org"

Reply via email to