Finally, here is my take on the often desired feature that Linux can not only be an I2C master, but also an I2C slave. Since RFC, most open issues have been dealt with. Find details in the patch descriptions. Documentation is still missing and will come later this or next week, but surely early enough for the 3.19 release which this series wants to go in. Yet, I'd like to encourage code-review and build-testing already. Basically, an I2C slave is a standard I2C client providing a callback function. When registering as a slave, the connection to the I2C adapter is made which uses the callback when a slave event happens. That splits the HW support (enabling slave mode on the adapter) and SW support (here a generic eeprom simulator) nicely IMO. The patches have been tested with a Renesas R8A7790 based Lager board. They are based on top of 3.18-rc5, but will easily apply to renesas/devel. A git tree can be found here: git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/slave-support Comments welcome! Thanks, Wolfram Wolfram Sang (3): i2c: core changes for slave support i2c: slave-eeprom: add eeprom simulator driver i2c: rcar: add slave support drivers/i2c/Kconfig | 10 +++ drivers/i2c/Makefile | 1 + drivers/i2c/busses/i2c-rcar.c | 125 +++++++++++++++++++++++++++--- drivers/i2c/i2c-core.c | 49 ++++++++++++ drivers/i2c/i2c-slave-eeprom.c | 170 +++++++++++++++++++++++++++++++++++++++++ include/linux/i2c.h | 29 +++++++ 6 files changed, 375 insertions(+), 9 deletions(-) create mode 100644 drivers/i2c/i2c-slave-eeprom.c -- 2.1.1 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
