From: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx> I am currently working on the long standing issue of slave support for the I2C framework. Here is a very rough first draft, so you can see what path I chose. Three big things are still missing: documentation, a driver supporting the hooks created here, and testing. So, this is more a draft how the interface could look like and will soon get the details when I implement the support for the i2c-rcar driver. If you want to comment, that is appreciated. However, please focus on high-level comments, not implementation details. There is a lot of sloppiness in the details, I do know. If they are still present in the first real patches, then you can complain ;) Since docs are still missing, here is a rough description: A software slave driver is a standard I2C driver which will be matched against a standard I2C client. The exception is that it requests a slave instance from its adapter via i2c_slave_request() in probe. It provides a callback which will be invoked in case events happen for this slave. And again: This is a draft, up to now compile tested only. Wolfram Sang (3): WIP: i2c core changes for slave support WIP: sketch of an slave-eeprom simulator WIP: adapt dts for i2c slave use arch/arm/boot/dts/r8a7790-lager.dts | 15 ++-- drivers/i2c/i2c-core.c | 42 +++++++++++ drivers/i2c/i2c-slave-eeprom.c | 140 ++++++++++++++++++++++++++++++++++++ include/linux/i2c-slave.h | 28 ++++++++ include/linux/i2c.h | 5 ++ 5 files changed, 225 insertions(+), 5 deletions(-) create mode 100644 drivers/i2c/i2c-slave-eeprom.c create mode 100644 include/linux/i2c-slave.h -- 2.0.0 -- 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
