Greg KH <greg@xxxxxxxxx>: > On Thu, Apr 15, 2010 at 01:38:29AM -0400, Eric Raymond wrote: > > Short version: > > > > I need to know how, from a USB device descriptor associated with a > > USB-serial device, I can get the USB-serial device's minor number. > > > > I'm using Ubuntu 9.10 and have libusb-1.0.0 available. I have > > successfully written code to walk the enumerated-devices list. > > Use libudev to get this easily. sysfs shows this mapping, look in > /sys/dev/char/ for the links, or walk backward from the usb device > itself. OK, I found the libudev Reference Manual. Looks like I can use that. "walk backward from the usb device" - that I don't understand. -- <a href="http://www.catb.org/~esr/";>Eric S. Raymond</a> -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
