Re: [spi-devel-general] SPI bridge

2008-05-09 Thread Grant Likely
On Fri, May 9, 2008 at 5:22 PM, Erwin Authried <[EMAIL PROTECTED]> wrote: > I'm I'm using something close to your description. On the SPI master, I > have one chipselect (SS)only. When the master starts a transfer to SPI > device N, it activates SS and sends the slave address as the first byte. > W

Re: [spi-devel-general] SPI bridge

2008-05-09 Thread Erwin Authried
I'm I'm using something close to your description. On the SPI master, I have one chipselect (SS)only. When the master starts a transfer to SPI device N, it activates SS and sends the slave address as the first byte. When the SPI bridge receives the address byte, it activates the chipselect for the

[spi-devel-general] SPI bridge

2008-05-09 Thread Grant Likely
I don't see anything in the SPI documentation about this... has any work been done on supporting drivers for SPI bridges? Specifically, an SPI device that has local registers, but can also pass through the SPI signals to child devices. As an example; imagine the following configuration: +---