Hi, I have a driver for three different usb crypto tokens. It works completely in userspace by using ioctls on the /proc/bus/usb/... device.
Now I'd like to add support for another usb crypto token. What that token does is still 90+% the same, but it differers in one small issue: the three tokens I already support are using usb control transfers, so it was easy to implement this. The new token has two interrupt endpoints. How can I talk to these from userspace? Data is read with a usb "c2 02 00 00 00 00 00 01" packet, data is written with usb "42 01 00 00 00 00 xx 00" packets. Other combinations i sniffed were "42 65", "42 a0" and "42 a1", but i don't knoe their meaning yet. The kernel documentation on usbfs is very sparse, it mostly links to the devio.c source code. For control and bulk transfer thats fine as these are quite easy to do. But I have no idea how to interrupt transfers as required from userspace. Any example or code fragment would be very helpful. I read parts of drivers/usb/core/*.c but didn't know the inner workings of linux-usb in detail. Thanks for your help. Regards, Andreas ------------------------------------------------------- This SF.net email is sponsored by:Crypto Challenge is now open! Get cracking and register here for some mind boggling fun and the chance of winning an Apple iPod: http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0031en _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
