From eee543e8248150e8fb833943c71f40c7b1724600 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Fri, 5 Oct 2012 22:23:51 +0200 Subject: i2c-mux: Add support for device auto-detection Let I2C bus segments behind multiplexers have a class. This allows for device auto-detection on these segments. As long as parent segments don't share the same class, it should be fine. I implemented support in drivers i2c-mux-gpio and i2c-mux-pca954x. I left i2c-mux-pca9541 and i2c-mux-pinctrl alone for the moment as I don't know if this feature makes sense for the use cases of these drivers. Signed-off-by: Jean Delvare Cc: Peter Korsgaard Cc: David Daney Cc: Michael Lawnick Cc: Rodolfo Giometti --- include/linux/i2c-mux.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/i2c-mux.h') diff --git a/include/linux/i2c-mux.h b/include/linux/i2c-mux.h index c79083830014..40cb05a97b46 100644 --- a/include/linux/i2c-mux.h +++ b/include/linux/i2c-mux.h @@ -36,6 +36,7 @@ struct i2c_adapter *i2c_add_mux_adapter(struct i2c_adapter *parent, struct device *mux_dev, void *mux_priv, u32 force_nr, u32 chan_id, + unsigned int class, int (*select) (struct i2c_adapter *, void *mux_dev, u32 chan_id), int (*deselect) (struct i2c_adapter *, -- cgit