Hi! This series tries to check the I2C device id, but instead of open coding the check in the pca954x driver, I have a new function in the core doing the work. The code is only compile-tested, hence the RFC, and I would really like a Tested-by: tag from Adrian who presumably have one of these chips. Also, I'm not sure if I should list all manufacturers that I know about in the header, or if I should settle for the one that is actually used and leave the others to be added by whomever needs them... Cheers, peda Peter Rosin (2): i2c: add i2c_get_device_id() to get the standard i2c device id i2c: mux: pca954x: verify the device id of the pca984x chips drivers/i2c/i2c-core-base.c | 33 ++++++++++++++++++++++++++++ drivers/i2c/muxes/i2c-mux-pca954x.c | 43 +++++++++++++++++++++++++++++++++++++ include/linux/i2c.h | 30 ++++++++++++++++++++++++++ 3 files changed, 106 insertions(+) -- 2.11.0
