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mmc: enable/disable functions for SDIO

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Like many other buses, the devices (functions) on the SDIO bus
must be enabled before they can be used. Add functions that allow
drivers to do so.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Pierre Ossman 2007-05-27 14:22:37 +02:00
parent 46f555f273
commit fa64efa1f2
3 changed files with 188 additions and 0 deletions
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3
include/linux/mmc/sdio_func.h
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@ -55,6 +55,9 @@ extern void sdio_unregister_driver(struct sdio_driver *);
extern void sdio_claim_host(struct sdio_func *func);
extern void sdio_release_host(struct sdio_func *func);
extern int sdio_enable_func(struct sdio_func *func);
extern int sdio_disable_func(struct sdio_func *func);
extern unsigned char sdio_readb(struct sdio_func *func,
unsigned int addr, int *err_ret);