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Diffstat (limited to 'Documentation/i2c/slave-eeprom-backend')
| -rw-r--r-- | Documentation/i2c/slave-eeprom-backend | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/i2c/slave-eeprom-backend b/Documentation/i2c/slave-eeprom-backend new file mode 100644 index 000000000..04f8d8a9b --- /dev/null +++ b/Documentation/i2c/slave-eeprom-backend @@ -0,0 +1,14 @@ +Linux I2C slave eeprom backend +============================== + +by Wolfram Sang <wsa@sang-engineering.com> in 2014-15 + +This is a proof-of-concept backend which acts like an EEPROM on the connected +I2C bus. The memory contents can be modified from userspace via this file +located in sysfs: + + /sys/bus/i2c/devices/<device-directory>/slave-eeprom + +As of 2015, Linux doesn't support poll on binary sysfs files, so there is no +notification when another master changed the content. + |