Re: Trouble loading firmware to USB device

From: Hans Petter Selasky <hps_at_selasky.org>
Date: Thu, 21 Apr 2022 18:19:41 UTC 
On 4/21/22 19:51, Farhan Khan wrote:
> The usb_config is listed below. I got the bufsize's by running `lsusb`
> on Linux, but it should be the same basic output from FreeBSD tools. A
> link to my latest commit is here:
> https://github.com/khanzf/freebsd/blob/30fe0bd7677f07fd290e4150ccec620b7b09d532/sys/dev/athn/usb/if_athn_usb.c#L249

bufsize from lsusb is just wMaxPacketSize and is not correct. You need 
to check the driver how big transfers it is doing per endpoint.

Can you capture all traffic using "usbdump -i usbusX -f Y -s 256 -vvv" 
after you load the driver?

--HPS