On Thu, 2 Apr 2020 13:39:25 +0200 Lukas Wunner <lukas@xxxxxxxxx> wrote: > Note that vga_switcheroo is currently controlled via debugfs. > That is a historic artefact. The kernel has since gained a > mux subsystem in drivers/mux/ which could be used to represent > the display mux in a standardized way in regular sysfs. Hi, if mux control was in sysfs, then how would userspace figure out which mux state refers to which DRM device and its connector? Maybe some DRM connector property referring to the mux and its state? How would a display server running as a regular user gain access to sysfs to control the mux? Thanks, pq
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