Hi, 2009/12/10 Karicheri, Muralidharan <m-kariche...@ti.com>: > Hi, > > Thanks for the email. > > Any idea how i2c drivers can work with this? > > Currently in my board, I have adapter id = 1 for main i2c bus. So when this > mux driver is built into the kernel, I guess I can access it using a > different adapter id, right? If so, what is the adapter id?
Yes, exactly that is way of using - additional i2c buses were born when pca954x started. Daniel already described this in his mail: "With these patches the bus segments beyond the i2c multiplexer will be registered as separate i2c busses. Access to a device on those busses will then automatically reconfigure the multiplexer." Additional i2c buses (adapters) were counted from number +1 higher then highest i2c bus number. If you main i2c bus is i2c-1, then you you should find i2c-2,i2c-3,i2c-4,i2c-5 new buses after pca954x loading. You can check that with i2cdetect tools. > > How do I use this with MT9T031 driver? Any idea to share? > I never had a look inside mt9t031 driver, but in general - you simply point to some of that additional adaper by i2c_get_adapter(x) Idea is very smart. You don't need to manage pca954x on your own. Driver do it itself :) /Honza -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
