On Tue, Jun 06, 2017 at 08:09:50PM +0200, Julian Exner wrote: > Hi all, > > sorry for neglecting this thread for so long. And thanks Ulrik for pointing > me to the formalities. > > > I was kind of surprised at first that the value was 0x33 instead of 0x3 > > until I read the documentation pointers Julian provided. > > It seems like some kind of softswitch or masking for the individual buttons. > One of the 4-bit nibbles indicates the number of available buttons in > hardware, the other one the number of activated buttons. > > > I really would like this patch to become part of the linux kernel and > > I hope that Julian will go through the formalities for patch submission. > > I'm willing to do so, but I'm very short on time currently. Additionally, I > checked on a Thinkpad forum and was told that there are Thinkpads from the > 90s with two buttons (e.g. ThinkPad 760 and those before ThinkPad > 390/600/770). So I'm a bit afraid that simply setting the default to three > buttons may break something for these models and a more elaborate patch may > be necessary. how many of these do you expect to still be alive *and* in need of a new kernel? wikipedia says the 760 was produced 1995 to 1998 which would make the newest of them 19 years old now. I'd rather have a hwdb quirk for those in userspace, because disabling event codes is trivial. Cheers, Peter -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
