From ae7f7ebcb767714e4d294025e432638329f2948d Mon Sep 17 00:00:00 2001
From: Mike Frysinger
Date: Thu, 28 Jun 2007 17:13:51 +0000
Subject: document firmware support

---
 docs/mdev.txt | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'docs')

diff --git a/docs/mdev.txt b/docs/mdev.txt
index 51c3f0e..0b2c37d 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.
 
 For your convenience, the shell env var $MDEV is set to the device name.  So if
 the device 'hdc' was matched, MDEV would be set to "hdc".
+
+----------
+ FIRMWARE
+----------
+
+Some kernel device drivers need to request firmware at runtime in order to
+properly initialize a device.  Place all such firmware files into the
+/lib/firmware/ directory.  At runtime, the kernel will invoke mdev with the
+filename of the firmware which mdev will load out of /lib/firmware/ and into
+the kernel via the sysfs interface.  The exact filename is hardcoded in the
+kernel, so look there if you need to want to know what to name the file in
+userspace.
-- 
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