Use a distinct return code for SPI commands with unsupported/invalid

length.
Some drivers support only a few combinations of read/write length and
return error otherwise. Having a distinct return code for this error
means we can handle it in upper layers.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Reinauer <stepan@coresystems.de>


git-svn-id: https://code.coreboot.org/svn/flashrom/trunk@653 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 1 insertions, 0 deletions

diff --git a/spi.h b/spi.h
index aa80c43..3050ccf 100644
--- a/spi.h
+++ b/spi.h
@@ -108,5 +108,6 @@
 /* Error codes */
 #define SPI_INVALID_OPCODE	-2
 #define SPI_INVALID_ADDRESS	-3
+#define SPI_INVALID_LENGTH	-4
 
 #endif		/* !__SPI_H__ */