Re: [RFC PATCH 2/2] i2c: mux: pca954x: verify the device id of the pca984x chips

[Peter Rosin]

On 2018-03-05 16:53, Wolfram Sang wrote:
> 
>> @@ -97,59 +98,83 @@ static const struct chip_desc chips[] = {
>>  		.nchans = 2,
>>  		.enable = 0x4,
>>  		.muxtype = pca954x_ismux,
>> +		.id = { .manufacturer_id = I2C_DEVICE_ID_NONE },
> 
> Can't we just leave this empty and add a NULL pointer check below when
> testing for the device id?

Nope, it's not a pointer. I didn't think it should be, but maybe it
should? The drawback is that you have to create an extra variable
for each of the chips that do need an id, and I didn't fancy that...

Cheers,
Peter