Hi, Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> writes: > On Fri, 2019-08-09 at 11:08 +0300, Felipe Balbi wrote: >> >> that works too. Another option would to introduce two options, >> has_input_report and has_output_report and have them true by default. >> >> Then user can even produce an output-only HID device, like these odd >> USB-controlled relays. > > Ideally we could just parse the descriptor :-) But that's a bit > trickier. > > One thing I've been meaning to look at is a way to properly handle > keyboards (and other "on/off" buttons) by having the kernel latch the > state so it can properly respond to things like get report, or resend > all the "down" keys after a reset (so that things like "keep some key > pressed during boot for magic to happen") actually works... cool idea > But one thing at a time :-) yup -- balbi
