On Wed, Sep 29, 2010 at 03:19:28AM -0400, Jean Delvare wrote: [ ... ] > > I was speaking of the PCA9540. I don't think anyone ever wrote a driver > for the PCA9541. And in all honestly I don't think the new i2c-mux > infrastructure is ready for this. It was written with single-master > topologies in mind. You'll have to rethink a lot of things if you want > to add support for "inverted" multiplexers. And I don't have the time > to help, sorry. > Actually, the infrastructure works quite nicely. I use select_chan to acquire the slave, and release_chan to initiate release. It behaves like a one-channel multiplexer. > I don't quite see the point of such chips, BTW. I2C supports > multi-master already, so two masters talking to the same slave > sequentially is already supported. > Tell that to our HW team, and to them: http://www.lineagepower.com/oem/pdf/CPLI2C.pdf Guenter -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
