TASK05: procfs blinking LED module#118
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sergiyus wants to merge 5 commits intoKernel-GL-HRK:mainfrom
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1. module.c is a simple Linux kernel driver that allows reading/writing to /proc/hello/dummy. The size of the buffer is 100 bytes. File checked by checkpatch.pl. 2. Added -DDEBUG key to Makefile - to print debug info in dmesg. 3. module.ko - compiled for Raspberry Pi Zero HW (Linux 5.15.84+, arm6l). 4. Added README file with task and .gitignore. Signed-off-by: Sergiy Us <sergiy.us@gmail.com>
The creation of the directory and file for /proc is separated into a separate function (proc_init()). Signed-off-by: Sergiy Us <sergiy.us@gmail.com>
The timer interval is based on the TIMEOUT macro and is 1000ms. Signed-off-by: Sergiy Us <sergiy.us@gmail.com>
Added flashing LED with 1000ms ON and 1000ms OFF. Reading from /proc/hello/led - returns Led status (0/1) and timeout. Signed-off-by: Sergiy Us <sergiy.us@gmail.com>
Added write timeout in /proc/hello/led. Signed-off-by: Sergiy Us <sergiy.us@gmail.com>
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This hometask is correct, but brunch for pull request is incorrect. Therefore a new pull request will be created. |
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Implemented a Linux kernel driver module that blinks an LED using a timer. Reading from /proc/hello/led returns the state of the LED (1/0) and the blink period (in milliseconds). Writing to procfs changes the blink period. The module.c file is checked with checkpatch.pl. The Makefile used the -DDEBUG key to print debugging information to dmesg. Module.ko - compiled for Raspberry Pi Zero HW (Linux 5.15.84+, arm6l). Added a video of the LED blinking.