memory_accessor: implement the new memory_accessor interfaces for SPI EEPROMs
- Define new setup() hook to export the accessor
- Implement accessor methods
Moves some error checking out of the sysfs interface code into the layer
below it, which is now shared by both sysfs and memory access code.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/spi/eeprom.h b/include/linux/spi/eeprom.h
index 1085212..306e7b1 100644
--- a/include/linux/spi/eeprom.h
+++ b/include/linux/spi/eeprom.h
@@ -1,6 +1,8 @@
#ifndef __LINUX_SPI_EEPROM_H
#define __LINUX_SPI_EEPROM_H
+#include <linux/memory.h>
+
/*
* Put one of these structures in platform_data for SPI EEPROMS handled
* by the "at25" driver. On SPI, most EEPROMS understand the same core
@@ -17,6 +19,10 @@
#define EE_ADDR2 0x0002 /* 16 bit addrs */
#define EE_ADDR3 0x0004 /* 24 bit addrs */
#define EE_READONLY 0x0008 /* disallow writes */
+
+ /* for exporting this chip's data to other kernel code */
+ void (*setup)(struct memory_accessor *mem, void *context);
+ void *context;
};
#endif /* __LINUX_SPI_EEPROM_H */