f_hid, f_mass_storage, and f_rdnis via configfs on platform/intel-mid

The linux-usb community has been quite helpful, but I would really love some discourse on this from knowledgeable people at Intel.

It seems it's up to me to backport the patches to a kernel that's not maintained in the open, but I don't want to do this alone.

"then you need to backport patches yourself. The community can't really

support older kernels :-)"

"I guess you don't have other way but keep in mind you'll, essentially,

be on your own."

Thanks for all the direction and feedback thus far, configfs is the

way to go but I would need f_hid, f_mass_storage, and f_rdnis which

aren't available in v3.10. Configfs f_hid is relatively recent,

f_rndis + f_mass_storage where merged into v3.11, but similar

functions actual entered the kernel in v3.10... which is what gives me

hope that the porting may be simple.

Porting the platform/intel-mid forward to a new kernel version without

communication from Intel would probably result in needless duplication

of effort. Would it be advisable for me to backport the

drivers/usb/gadget/function/* from 3.19-rc1 and compile them in

3.10.17? I doubt it would be as simple as copying them over and

modifying the Makefile, but one can hope.

https://lkml.org/lkml/2013/7/1/388 - v3.11-rc1 for f_rndis and f_mass_storage

to load and configure **)

**root@...:/# cat

/sys/kernel/config/usb_gadget/gadget/functions/acm.usb0/port_num