i2c: mux: create "channel-n" symlinks for child segments in the mux device
authorGerlando Falauto <gerlando.falauto@keymile.com>
Thu, 13 Nov 2014 13:39:56 +0000 (14:39 +0100)
committerWolfram Sang <wsa@the-dreams.de>
Tue, 18 Nov 2014 15:09:49 +0000 (16:09 +0100)
commitc9449affad2ae0824927df5a207705e07f346fb1
treee1ca67535ca757925c0a73a65230145070e4a92c
parent51cf3b0e2a72bb08cd280be6c0ead4e08ed50a2c
i2c: mux: create "channel-n" symlinks for child segments in the mux device

This makes the topology clearer. For instance, by adding a pca9547
device with address 0x70 to bus i2c-0, you get:

/sys/class/i2c-dev/i2c-0/device/0-0070/channel-0 -> i2c-1
...
/sys/class/i2c-dev/i2c-0/device/0-0070/channel-7 -> i2c-8

Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com>
[wsa: simplified sysfs-usage and fixed format string usage]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Martin Belanger <martin.belanger@cyaninc.com>
Acked-by: Danielle Costantino <danielle.costantino@gmail.com>
drivers/i2c/i2c-mux.c