diff options
author | Wolfram Sang <w.sang@pengutronix.de> | 2008-07-14 22:38:35 +0200 |
---|---|---|
committer | Jean Delvare <khali@mahadeva.delvare> | 2008-07-14 22:38:35 +0200 |
commit | 2b7a5056a0a7ff17d5d2004c29c852a92a6bd632 (patch) | |
tree | 72a58b0b9a0f67f5ff95296176067a12d7d3825f /drivers/i2c/chips/Kconfig | |
parent | e9ca9eb9d7fc7bf3dc3cec5ba7edb089c4625f7b (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/Kconfig | 26 |
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 |