Hi Dmitry,
> in your usbnet-rndis patch you noted it was tested "on a little-endian
> host, talking to a peripheral running the Linux-USB RNDIS "gadget"
> stack". I'd like to test the driver with such peripheral too. Actually
> I've already tried it with pxa2xx udc but in that case the host doesn't
> set the rndis configuration (2) it always chooses the CDC Ethernet (1).
> Is it possible to made the host to set the rndis instead of CDC Ethernet?
Yes, use sysfs. If your device is on bus 3 hub 2 port 1:
# cd /sys/bus/usb/devices/usb
# cd 3-2.1
# echo 2 > bConfigurationValue
Echo "0" if you just want to deconfigure it totally (no Linux driver etc).
> Or maybe you can explain how to correct g_ether's device descriptor to
> work with usbnet-rndis.
The issue there is a policy we've needed to have in drivers/usb/core/hub.c
and commented there; see choose_configuration(). I don't think I'd want
to change that default very much. Likewise with encouraging RNDIS-only
gadgets in any way. :)
- Dave
p.s. Should you, or anyone, have time to figure out how RNDIS gadgets
are really expected to handle a USB suspend/resume -- likely it'd
just need some quality time with a USB sniffer -- I'd much like to
see someone contribute code to make the RNDIS_PM and RNDIS_WAKEUP
work against Windows hosts. :)
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