Hi Jiri, First of all, thank you for taking the time to review my patches. On Thu, Jun 24, 2021 at 03:33:39PM +0200, Jiri Kosina wrote: > On Sat, 22 May 2021, José Expósito wrote: > > > [...] > > v2: Add depends on USB_HID to Kconfig > > Hmm, why is this dependency needed in the first place, please? I think > trying to keep the drivers independent on transport drivers (especially in > cases like this, where more variants of physical transports actually > really do exist) is worth trying. Sorry, that's something I should have explained in the changelog. Intel's test bot reported compilation errors on the first version of the patch when USB support wasn't configured: https://lore.kernel.org/patchwork/patch/1425313/ I was kindly pointed to a similar error and its fix, but, maybe in this case this is not the right fix? Maybe there is a macro that I can use to wrap the USB related code in an #ifdef? Thanks, Jose