> Hans, Benjamin, could you please give this patchset some smoke-testing? It 
> looks good to me, but I'd like it to get some testing from your testing 
> machinery before merging.

Please give me some more days. I am not fully convinced yet that this
use of I2C_M_RECV_LEN is not broken on some controllers.

Plus, I'd favor if this could go via I2C tree. It is within I2C where
the non-trivial changes are. The HID part is just the final bit. Can we
agree on that?