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authorKumar Gala <galak@kernel.crashing.org>2007-02-12 23:57:21 -0600
committerKumar Gala <galak@kernel.crashing.org>2007-02-12 23:57:21 -0600
commit54c66f6d781e03dc0b23956234963c4911e6d1c0 (patch)
tree40619a66ae6d8703a57bf681d087ffeabbffd346 /include/linux/spi/eeprom.h
parent8ce0a7df6e6117d8814e976d4b7ce6a6b2c9cf93 (diff)
parent17e0e27020d028a790d97699aff85a43af5be472 (diff)
Merge branch 'master' into 85xx
Diffstat (limited to 'include/linux/spi/eeprom.h')
-rw-r--r--include/linux/spi/eeprom.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/spi/eeprom.h b/include/linux/spi/eeprom.h
new file mode 100644
index 00000000000..1085212c446
--- /dev/null
+++ b/include/linux/spi/eeprom.h
@@ -0,0 +1,22 @@
+#ifndef __LINUX_SPI_EEPROM_H
+#define __LINUX_SPI_EEPROM_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
+ * command set. If you need to support EEPROMs that don't yet fit, add
+ * flags to support those protocol options. These values all come from
+ * the chip datasheets.
+ */
+struct spi_eeprom {
+ u32 byte_len;
+ char name[10];
+ u16 page_size; /* for writes */
+ u16 flags;
+#define EE_ADDR1 0x0001 /* 8 bit addrs */
+#define EE_ADDR2 0x0002 /* 16 bit addrs */
+#define EE_ADDR3 0x0004 /* 24 bit addrs */
+#define EE_READONLY 0x0008 /* disallow writes */
+};
+
+#endif /* __LINUX_SPI_EEPROM_H */