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Diffstat (limited to '3 resources/linux/Device drivers.md')
| -rw-r--r-- | 3 resources/linux/Device drivers.md | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/3 resources/linux/Device drivers.md b/3 resources/linux/Device drivers.md deleted file mode 100644 index 95f1a75..0000000 --- a/3 resources/linux/Device drivers.md +++ /dev/null @@ -1,22 +0,0 @@ -#linux #devices - ---- -major, minor numbers -major = driver (used by kernel when opening device to dispatch to correct driver) -minor = used by driver to differentiate device(s) - -after disk the major, minor numbers are shown: -``` -[jasras@n04.compute.vps2-lej1 ~]$ ls -l /dev/dm-* -brw-rw---- 1 root disk 253, 0 Oct 25 10:10 /dev/dm-0 -brw-rw---- 1 root disk 253, 1 Oct 25 10:11 /dev/dm-1 -brw-rw---- 1 root root 253, 11 Oct 28 19:58 /dev/dm-11 -brw-rw---- 1 root root 253, 12 Oct 28 19:58 /dev/dm-12 -``` - -available devices: `cat /proc/devices` - -character devices vs block devices; what is the difference? - ---- -[oreilly-device-drivers](https://www.oreilly.com/library/view/linux-device-drivers/0596000081/ch03s02.html)
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