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-rw-r--r--Documentation/IPMI.txt9
1 files changed, 6 insertions, 3 deletions
diff --git a/Documentation/IPMI.txt b/Documentation/IPMI.txt
index 0256805b548f..7756e09ea759 100644
--- a/Documentation/IPMI.txt
+++ b/Documentation/IPMI.txt
@@ -326,9 +326,12 @@ for events, they will all receive all events that come in.
For receiving commands, you have to individually register commands you
want to receive. Call ipmi_register_for_cmd() and supply the netfn
-and command name for each command you want to receive. Only one user
-may be registered for each netfn/cmd, but different users may register
-for different commands.
+and command name for each command you want to receive. You also
+specify a bitmask of the channels you want to receive the command from
+(or use IPMI_CHAN_ALL for all channels if you don't care). Only one
+user may be registered for each netfn/cmd/channel, but different users
+may register for different commands, or the same command if the
+channel bitmasks do not overlap.
From userland, equivalent IOCTLs are provided to do these functions.