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hwdb: Document expected MOUNT_MATRIX on devices with non upright display (#7177) 

On some devices the display (LCD panel) is mounted non upright
in the device's casing, e.g. mounted upside-down or 90 degree rotated.

Document the expected ACCEL_MOUNT_MATRIX settings for such devices.
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Hans de Goede 2017-10-25 09:47:27 +02:00 committed by Lennart Poettering
parent 4f13e53428
commit b141888b30
1 changed files with 7 additions and 0 deletions
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@ -38,6 +38,13 @@
#
# [1]: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dfc57732ad38f93ae6232a3b4e64fd077383a0f1
#
# Note for devices where the display (LCD panel) is mounted non upright
# in the device's casing, e.g. mounted upside-down or 90 degree rotated,
# the ACCEL_MOUNT_MATRIX should be such that the x and y axis matches the
# x and y axis of the display, not those of the casing, so that desktop
# environments using the accelerometer data for rotation will e.g.
# automatically flip their output for an upside-down display when the device
# is held upright.
#
# Sort by brand, model