Hi all, I am trying to understand a snippet of athn(9) code for the purpose of porting to FreeBSD. I am reading the function athn_usb_htc_setup() located in /usr/src/sys/dev/usb/if_athn_usb.c. After tracing it through, it seems to terminate at a usbd_setup_xfer(9) call.
Is this the equivalent of setting up which USB function will handle which channel? This function seems similar to FreeBSD's usbd_transfer_setup(9), which I believe does that. If so, how is that different from athn_usb_open_pipes()? If not, what does athn_usb_htc_setup() do? It is not clear to me and therefore I am having trouble making the translation. (Sorry for the double-post on current-us...@netbsd.org, I was directed to post here after consulting with a user on IRC) Thank you! Farhan
