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| author | Mike Frysinger <vapier@gentoo.org> | 2007-06-28 17:13:51 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2007-06-28 17:13:51 +0000 |
| commit | ae7f7ebcb767714e4d294025e432638329f2948d (patch) | |
| tree | d6cb4b84504a961897c4e2ebd2c12cb40a74b504 | |
| parent | 12d2129d500ed93a331c5a9863dd56f5dd0235e9 (diff) | |
| download | busybox-w32-ae7f7ebcb767714e4d294025e432638329f2948d.tar.gz busybox-w32-ae7f7ebcb767714e4d294025e432638329f2948d.tar.bz2 busybox-w32-ae7f7ebcb767714e4d294025e432638329f2948d.zip | |
document firmware support
| -rw-r--r-- | docs/mdev.txt | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/docs/mdev.txt b/docs/mdev.txt index 51c3f0ed1..0b2c37d99 100644 --- a/docs/mdev.txt +++ b/docs/mdev.txt | |||
| @@ -66,3 +66,15 @@ command to the shell), so make sure you have a shell installed at /bin/sh. | |||
| 66 | 66 | ||
| 67 | For your convenience, the shell env var $MDEV is set to the device name. So if | 67 | For your convenience, the shell env var $MDEV is set to the device name. So if |
| 68 | the device 'hdc' was matched, MDEV would be set to "hdc". | 68 | the device 'hdc' was matched, MDEV would be set to "hdc". |
| 69 | |||
| 70 | ---------- | ||
| 71 | FIRMWARE | ||
| 72 | ---------- | ||
| 73 | |||
| 74 | Some kernel device drivers need to request firmware at runtime in order to | ||
| 75 | properly initialize a device. Place all such firmware files into the | ||
| 76 | /lib/firmware/ directory. At runtime, the kernel will invoke mdev with the | ||
| 77 | filename of the firmware which mdev will load out of /lib/firmware/ and into | ||
| 78 | the kernel via the sysfs interface. The exact filename is hardcoded in the | ||
| 79 | kernel, so look there if you need to want to know what to name the file in | ||
| 80 | userspace. | ||