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| author | Kumar Gala <galak@kernel.crashing.org> | 2006-03-24 03:18:21 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-24 07:33:28 -0800 |
| commit | 208a08f7cc2a8932ed76162d9844f9ae7d7fc015 (patch) | |
| tree | 6f0eb837cf8c1ce131c93ecf52476046519c5969 /include/linux/ide.h | |
| parent | f751d50f6dea1446797c9a31f5c183002e5780a8 (diff) | |
| download | linux-208a08f7cc2a8932ed76162d9844f9ae7d7fc015.tar.gz linux-208a08f7cc2a8932ed76162d9844f9ae7d7fc015.tar.bz2 linux-208a08f7cc2a8932ed76162d9844f9ae7d7fc015.zip | |
[PATCH] ide: Allow IDE interface to specify its not capable of 32-bit operations
In some embedded systems the IDE hardware interface may only support 16-bit
or smaller accesses. Allow the interface to specify if this is the case
and don't allow the drive or user to override the setting.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/ide.h')
| -rw-r--r-- | include/linux/ide.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/ide.h b/include/linux/ide.h index a7fc4cc79b23..8d2db412ba9c 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -792,6 +792,7 @@ typedef struct hwif_s { unsigned no_dsc : 1; /* 0 default, 1 dsc_overlap disabled */ unsigned auto_poll : 1; /* supports nop auto-poll */ unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */ + unsigned no_io_32bit : 1; /* 1 = can not do 32-bit IO ops */ struct device gendev; struct completion gendev_rel_comp; /* To deal with device release() */ |