Corentin Chary 5b80fc40e5
samsung-laptop: add a small debugfs interface ...
This allow to call arbitrary sabi commands wihout
modifying the driver at all. For example, setting
the keyboard backlight brightness to 5 using debugfs
interface can be done like that:
; Set the command
echo 0x78 > command
; Set the data
echo 0x0582 > d0
; Fill the rest with 0
echo 0 > d1
echo 0 > d2
echo 0 > d3
; And issue the command
cat call
Signed-off-by: Corentin Chary <corentincj@iksaif.net >
Acked-by: Greg Kroah-Hartman <gregkh@suse.de >
Signed-off-by: Matthew Garrett <mjg@redhat.com >
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5b80fc40e5