USB: Mass Storage + RNDIS

[CoR]

Hi !

I implemented an RNDIS interface on my LPC1768, and it works, which i
okey.
On the host, users are just required to install an .inf file. However, eve
if the file is really tiny, it's still trouble, since at some point th
file has to be transfered (CD-Rom, USB Key ...).

I was wondering if by some USB miracle I could present my device to th
host both as a RNDIS device (which would not be configured on
not-yet-configured computer) and a Mass Storage device (so the user ca
download the inf). I'm not sure this is do-able, but this would have bee
cool to implement some kind of /sys on my device.

Another alternative would be to switch modes on the board so it coul
present different descriptors, but I would rather know if the first metho
could work.

Thanks,
Bertrand



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[Jasen Betts]

On 2011-06-14, CoR <bertrand.roussel@n_o_s_p_a_m.cor-net.org> wrote:

Hi !

I implemented an RNDIS interface on my LPC1768, and it works, which is
okey.
On the host, users are just required to install an .inf file. However, even
if the file is really tiny, it's still trouble, since at some point the
file has to be transfered (CD-Rom, USB Key ...).

usb devices can operate in different modes. you could have the
preferred mode as RNDIS device and a fallback as usb storage.



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