On Wed, Sep 21, 2022 at 07:17:07PM +0200, Pavel Machek wrote: > On Wed 2022-09-21 17:45:33, Andy Shevchenko wrote: > > On Tue, Sep 20, 2022 at 10:56:37PM +0200, Pavel Machek wrote: > > > Hi! > > > > > > Cutiepie is a small handheld tablet. It has embedded controller > > > connected via serial to the main system, handling stuff such as power > > > button and battery percentage. Currently they are using userland > > > deamon for communication, but I believe that should eventually go into > > > kernel. > > > > > > For debugging, it would be really nice to be able to attach my module > > > to given serdev. Is such thing possible? I see "[PATCH v2 00/19] > > > Dynamically load/remove serdev devices via sysfs*" series > > > (https://www.spinics.net/lists/linux-serial/msg30732.html) but I'm not > > > sure if equivalent functionality exists in mainline kernel? > > > > > > Is there some kind of similar hardware already supported by mainline? > > > Using driver as a reference might be easier than starting from > > > scratch. > > > > Is it arm or x86 based tablet? > > arm64, but CPU architecture really should not matter. It makes sense on the usual practices done for the platform as a whole, e.g. ACPI vs. DT. So, I believe this one is DT based. -- With Best Regards, Andy Shevchenko
