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-rw-r--r--docs/mdev.txt6
1 files changed, 4 insertions, 2 deletions
diff --git a/docs/mdev.txt b/docs/mdev.txt
index 0b2c37d99..4a4451b4d 100644
--- a/docs/mdev.txt
+++ b/docs/mdev.txt
@@ -62,10 +62,12 @@ The special characters have the meaning:
62 * Run both after creating and before removing the device. 62 * Run both after creating and before removing the device.
63 63
64The command is executed via the system() function (which means you're giving a 64The command is executed via the system() function (which means you're giving a
65command to the shell), so make sure you have a shell installed at /bin/sh. 65command to the shell), so make sure you have a shell installed at /bin/sh. You
66should also keep in mind that the kernel executes hotplug helpers with stdin,
67stdout, and stderr connected to /dev/null.
66 68
67For your convenience, the shell env var $MDEV is set to the device name. So if 69For your convenience, the shell env var $MDEV is set to the device name. So if
68the device 'hdc' was matched, MDEV would be set to "hdc". 70the device "hdc" was matched, MDEV would be set to "hdc".
69 71
70---------- 72----------
71 FIRMWARE 73 FIRMWARE