Re: i2c-mux adapter names not unique

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On 2017-03-13 14:14, MikeB wrote:
> 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.

I think it's fairly common for adapters from the same driver to have
the same 'name'. E.g. the .../busses/i2c-at91.c driver uses "AT91" for
all adapters it instantiates.

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

Why do they have to be unique?

Cheers,
peda

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