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| author | Alex Dubov <oakad@yahoo.com> | 2008-07-25 19:45:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-26 12:00:04 -0700 |
| commit | b77899985bdfd85a8e5a6e485033a9b4713d2471 (patch) | |
| tree | 5cf53074b73de6fc27d8d8b0ac78fc8d32c0b9df /include/linux/memstick.h | |
| parent | 0147600172b4a5d261165d1aa5ef818d84da1557 (diff) | |
| download | lwn-b77899985bdfd85a8e5a6e485033a9b4713d2471.tar.gz lwn-b77899985bdfd85a8e5a6e485033a9b4713d2471.zip | |
memstick: allow "set_param" method to return an error code
Some controllers (Jmicron, for instance) can report temporal failure
condition during power-on. It is desirable to account for this using a
return value of "set_param" device method. The return value can also be
handy to distinguish between supported and unsupported device parameters
in run time.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/memstick.h')
| -rw-r--r-- | include/linux/memstick.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/memstick.h b/include/linux/memstick.h index 37a5cdb03918..2fe599c66d52 100644 --- a/include/linux/memstick.h +++ b/include/linux/memstick.h @@ -284,7 +284,7 @@ struct memstick_host { /* Notify the host that some requests are pending. */ void (*request)(struct memstick_host *host); /* Set host IO parameters (power, clock, etc). */ - void (*set_param)(struct memstick_host *host, + int (*set_param)(struct memstick_host *host, enum memstick_param param, int value); unsigned long private[0] ____cacheline_aligned; |