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authorWolfram Sang <w.sang@pengutronix.de>2008-07-14 22:38:35 +0200
committerJean Delvare <khali@mahadeva.delvare>2008-07-14 22:38:35 +0200
commit2b7a5056a0a7ff17d5d2004c29c852a92a6bd632 (patch)
tree72a58b0b9a0f67f5ff95296176067a12d7d3825f /drivers/i2c/chips/Kconfig
parente9ca9eb9d7fc7bf3dc3cec5ba7edb089c4625f7b (diff)
i2c: New-style EEPROM driver using device IDs
Add a new-style driver for most I2C EEPROMs, giving sysfs read/write access to their data. Tested with various chips and clock rates. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/i2c/chips/Kconfig')
-rw-r--r--drivers/i2c/chips/Kconfig26
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index 6326468d5f0..50e0a465374 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -14,6 +14,32 @@ config DS1682
This driver can also be built as a module. If so, the module
will be called ds1682.
+config AT24
+ tristate "EEPROMs from most vendors"
+ depends on SYSFS && EXPERIMENTAL
+ help
+ Enable this driver to get read/write support to most I2C EEPROMs,
+ after you configure the driver to know about each EEPROM on
+ your target board. Use these generic chip names, instead of
+ vendor-specific ones like at24c64 or 24lc02:
+
+ 24c00, 24c01, 24c02, spd (readonly 24c02), 24c04, 24c08,
+ 24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024
+
+ Unless you like data loss puzzles, always be sure that any chip
+ you configure as a 24c32 (32 kbit) or larger is NOT really a
+ 24c16 (16 kbit) or smaller, and vice versa. Marking the chip
+ as read-only won't help recover from this. Also, if your chip
+ has any software write-protect mechanism you may want to review the
+ code to make sure this driver won't turn it on by accident.
+
+ If you use this with an SMBus adapter instead of an I2C adapter,
+ full functionality is not available. Only smaller devices are
+ supported (24c16 and below, max 4 kByte).
+
+ This driver can also be built as a module. If so, the module
+ will be called at24.
+
config SENSORS_EEPROM
tristate "EEPROM reader"
depends on EXPERIMENTAL