I don't have `drm/card0` but `drm/card1` sysfs entry. `upp` fails on that. Please add an option to specify the card to use.

[dreirund]

Ahoj,
I have no /sys/class/drm/card0/, but it is named /sys/class/drm/card1/ on my machine:

upp dump:

[...]
FileNotFoundError: [Errno 2] No such file or directory: '/sys/class/drm/card0/device/pp_table'

ls -l /sys/class/drm/card1/device/pp_table:

-rw-r--r-- 1 root root 4096 Apr 28 12:30 /sys/class/drm/card1/device/pp_table

Please add an option that allows to specify the card (i.e. upp -c <number>, where <number> corresponds to the number in /sys/class/drm/card<number>/) to use.

Regards!

[sibradzic]

You already have option to specify that:

 . . .

Options:
  -p, --pp-file <filename>        Input/output PP table binary file.