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| author | Michael Albaugh <michael.albaugh@qlogic.com> | 2007-05-16 15:45:09 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2007-07-09 20:12:25 -0700 |
| commit | 82466f00ec6ef0a5ca7ea8991c731af2ec561c7d (patch) | |
| tree | 48fcc8f78e6df67130e8c70b160fea42aeff79ca /CREDITS | |
| parent | a024291b367f98188f4da4a66a9f2f40a2163efb (diff) | |
| download | blackbird-op-linux-82466f00ec6ef0a5ca7ea8991c731af2ec561c7d.tar.gz blackbird-op-linux-82466f00ec6ef0a5ca7ea8991c731af2ec561c7d.zip | |
IB/ipath: Support blinking LEDs with an led_override file
When we want to find an InfiniPath HCA in a rack of nodes, it is often
expeditious to blink the status LEDs via a userspace /sys file.
A write-only led_override "file" is published per device. Writes to
this file are interpreted as (string form) numbers, and the resulting
value sent to ipath_set_led_override(). The upper eight bits are
interpretted as a 4.4 fixed-point "frequency in Hertz", and the bottom
two 4-bit values are alternately (D0..3, then D4..7) used by the
board-specific LED-setting function to override the normal state.
Signed-off-by: Michael Albaugh <michael.albaugh@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'CREDITS')
0 files changed, 0 insertions, 0 deletions
