The cp210x driver can be used for several devices (CP2101/2/3/4). It is sometimes useful to know the actual part number, because there are slight differences in their capabilities. The first two patches are cleanups and not necessary to implement the feature. I can send them in a separate patch set if that's preferred. Petr Tesarik (4): cp210x: Replace USB magic numbers with symbolic names cp210x: Unify code for set/get config control messages cp210x: Store part number cp210x: Expose the part number in sysfs drivers/usb/serial/cp210x.c | 164 ++++++++++++++++++++++++++------------------ 1 file changed, 99 insertions(+), 65 deletions(-) -- 2.1.4 -- 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