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spi_flash: document expected return values 

The spi_flash API did not have any of its callbacks
documented. Do that so that people don't have to go
into the guts of an implementation to figure out the
proper expectations.

Change-Id: I55a0515445cab3697813d88373ee413f30b557b5
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/10206
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Aaron Durbin 2015-05-14 14:46:59 -05:00
parent d4a72f724f
commit a3565ae7c6
1 changed files with 1 additions and 0 deletions
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src/include/spi_flash.h
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@ -42,6 +42,7 @@ struct spi_flash {
u8 status_cmd; u8 status_cmd;
/* All callbacks return 0 on success and != 0 on error. */
int (*read)(struct spi_flash *flash, u32 offset, int (*read)(struct spi_flash *flash, u32 offset,
size_t len, void *buf); size_t len, void *buf);
int (*write)(struct spi_flash *flash, u32 offset, int (*write)(struct spi_flash *flash, u32 offset,