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- #!/bin/sh
- set -ex
- d=/debugfs
- mkdir -p "$d"
- # We also added a fstab entry that mounts this under /sys/kernel/debug autmoatically.
- # That is the most common place to mount it.
- # The /sys/kernel/debug directory gets created automatically when debugfs is
- # compiled into the kernel, but it does not get mounted automatically.
- mount -t debugfs none /debugfs
- insmod /debugfs.ko
- cd "${d}/lkmc_debugfs"
- cat myfile
- # => 42
- echo 13 > myfile
- cat myfile
- # => 13
- echo 666 > "${d}/lkmc_debugfs_file"
- cat myfile
- # => 666
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