From a6f6c96b65d7f65a7a7bf5cbe874eda182a6b2cc Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 3 Jan 2006 22:38:44 +0000 Subject: [MMC] Improve MMC card block size selection Select a block size for IO based on the read and write block size combinations, and whether the card supports partial block reads and/or partial block writes. If we are able to satisfy block reads but not block writes, mark the device read only. Signed-off-by: Russell King --- include/linux/mmc/card.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 18fc77f682de..7f7d40684288 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -30,7 +30,12 @@ struct mmc_csd { unsigned int tacc_ns; unsigned int max_dtr; unsigned int read_blkbits; + unsigned int write_blkbits; unsigned int capacity; + unsigned int read_partial:1, + read_misalign:1, + write_partial:1 + write_misalign:1; }; struct sd_scr { -- cgit v1.2.3