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android/Documentation/ABI/testing/sysfs-bus-usb-devices-usbsevseg
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threeeye bc1d038eac REVVL 6 Pro kernel bring-up: full working tree snapshot (2026-09-12)
Squashed backup commit (no shallow-clone history issues) of
xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream
commit 9eece662e) plus all fixes applied to get everpal_defconfig building
clean against a modern (GCC 15.2.0) toolchain -- see the previous commit
message on the lineage-23.2 branch (also in this repo history is not
available here since this is a squashed snapshot; full incremental history
lives in the local DL380 checkout and the upstream GitHub remote).

Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
2026-09-12 13:36:46 +00:00

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Where: /sys/bus/usb/.../powered
Date: August 2008
Kernel Version: 2.6.26
Contact: Harrison Metzger <harrisonmetz@gmail.com>
Description: Controls whether the device's display will powered.
A value of 0 is off and a non-zero value is on.
Where: /sys/bus/usb/.../mode_msb
Where: /sys/bus/usb/.../mode_lsb
Date: August 2008
Kernel Version: 2.6.26
Contact: Harrison Metzger <harrisonmetz@gmail.com>
Description: Controls the devices display mode.
For a 6 character display the values are
MSB 0x06; LSB 0x3F, and
for an 8 character display the values are
MSB 0x08; LSB 0xFF.
Where: /sys/bus/usb/.../textmode
Date: August 2008
Kernel Version: 2.6.26
Contact: Harrison Metzger <harrisonmetz@gmail.com>
Description: Controls the way the device interprets its text buffer.
raw: each character controls its segment manually
hex: each character is between 0-15
ascii: each character is between '0'-'9' and 'A'-'F'.
Where: /sys/bus/usb/.../text
Date: August 2008
Kernel Version: 2.6.26
Contact: Harrison Metzger <harrisonmetz@gmail.com>
Description: The text (or data) for the device to display
Where: /sys/bus/usb/.../decimals
Date: August 2008
Kernel Version: 2.6.26
Contact: Harrison Metzger <harrisonmetz@gmail.com>
Description: Controls the decimal places on the device.
To set the nth decimal place, give this field
the value of 10 ** n. Assume this field has
the value k and has 1 or more decimal places set,
to set the mth place (where m is not already set),
change this fields value to k + 10 ** m.