WIP: Power board kmod

hardware/drivers/power_board/.gitignore

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+*.ko
+*.o
+*.cmd
+*.mod
+*.mod.c
+/modules.order
+/Module.symvers

hardware/drivers/power_board/Makefile

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+obj-m += power_board.o
+
+all:
+	make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
+
+clean:
+	make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean

hardware/drivers/power_board/README.md

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+# Power board kernel driver
+
+Debian building:
+
+```shell-session
+$ apt install build-essential linux-headers-`uname -r`
+$ make
+```
+
+Loading:
+
+```shell-session
+$ insmod power_board.ko
+```
+
+Unloading:
+
+```shell-session
+$ rmmod power_board
+```
+
+## Usage
+
+* The driver registers with the hwmon subsystem to show monitoring stats in lm-sensors
+* sysfs nodes are created for reading the data from scripts at `/sys/class/usbmisc/powerboard0/device`