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udev rules: fix detection of community firmware

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`!=` doesn't seem to be the exact inverse of `==`. To prove this I added
the following to the udev rules. On a system with the community firmware
both COMM_FW and NOT_COMM_FW were set to true, with the quectel firmware
only NOT_COMM_FW was true.

ATTRS{serial}=="community_fw", ENV{COMM_FW}="true"
ATTRS{serial}!="community_fw", ENV{NOT_COMM_FW}="true"
This commit is contained in:
ArenM
2022-10-23 19:32:04 -04:00
parent 5b4f9bcc12
commit 6b41ae6b3b
1 changed files with 5 additions and 9 deletions
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14
udev/80-modem-eg25.rules
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@@ -1,22 +1,18 @@
ACTION!="add", GOTO="eg25_end"
SUBSYSTEM!="usb", GOTO="eg25_end"
DRIVERS!="usb", GOTO="eg25_end"
ENV{DEVTYPE}!="usb_device", GOTO="eg25_end"
ACTION=="add", SUBSYSTEM=="usb", DRIVERS=="usb", ENV{DEVTYPE}=="usb_device", GOTO="eg25_start"
GOTO="eg25_end"
# Default attributes values
LABEL="eg25_start"
ATTRS{idVendor}=="2c7c", ATTRS{idProduct}=="0125", ATTR{power/control}="auto"
ATTRS{idVendor}=="2c7c", ATTRS{idProduct}=="0125", ATTR{power/autosuspend_delay_ms}="3000"
ATTRS{idVendor}=="2c7c", ATTRS{idProduct}=="0125", ATTR{power/wakeup}="enabled"
ATTRS{idVendor}=="2c7c", ATTRS{idProduct}=="0125", ATTR{power/persist}="0"
# If running the stock firmware, stop processing here
ATTRS{serial}!="community_fw", GOTO="eg25_end"
# power/control needs to be "on" for the community-maintained firmware
ATTRS{idVendor}=="2c7c", ATTRS{idProduct}=="0125", ATTR{power/control}="on"
ATTRS{serial}=="community_fw", ATTRS{idVendor}=="2c7c", ATTRS{idProduct}=="0125", ATTR{power/control}="on"
# Special trick for the PinePhone Pro: set power/persist to 1 *only* with the community FW
# We can identify the PPP by looking for the string "pinephone-pro" in the device tree "compatible" property
ATTRS{idVendor}=="2c7c", ATTRS{idProduct}=="0125", PROGRAM=="/bin/grep pine64,pinephone-pro /proc/device-tree/compatible", ATTR{power/persist}="1"
ATTRS{serial}=="community_fw", ATTRS{idVendor}=="2c7c", ATTRS{idProduct}=="0125", PROGRAM=="/bin/grep pine64,pinephone-pro /proc/device-tree/compatible", ATTR{power/persist}="1"
LABEL="eg25_end"