On Wed, 7 Nov 2007, Thomas Bogendoerfer wrote: > having a more generic zilog driver with platform backends is quite high on > my todo list. But I won't make promisses when this happens... Synchronous and DMA operation is the tough part, at least for the DECstation. OTOH, such a framework actually exists already as drivers/net/wan/z85230.[ch], but fitting it into the serial subsystem is a lot of work as the serial core currently has no notion of synchronous modes at all. Ultimately you'd like to be able to switch between asynchronous and synchronous line disciplines on a port by port basis (possibly including halves of the same chip). Maciej
