The current naming scheme for i2c-mux adapters "i2c-<parent adapter
id>-mux (chan_id <id>)" results in duplicate names if there is more
than one mux device on an i2c adapter since each device will have the
same <parent adapter id>.

For example:

                  +--------+
                  |PCA9548 |
                  |  0x70  |
                  |01234567|
                  +--------+
                   |
        +-----------------------------+
        |             |               |
    +--------+    +--------+     +--------+
    |PCA9548 |    |PCA9548 |     |PCA9548 |
    |  0x73  |    |  0x74  |     |  0x75  |
    |01234567|    |01234567|     |01234567|
    +--------+    +--------+     +--------+


will result in eight sets of duplicate names for the channels coming
off the lower three muxes.

Any suggestions on how to modify i2c-mux.c to make these names unique?

Thanks, Mike