Am Do 29. Mai 2008 schrieb Andy Green: > Somebody in the thread at some point said: > > | Anyway I think there shouldn't be a difference between MUX and in fact > using 2 > | or 3 of the actually available serial links of MC75i. Maybe hw (=some > others > | + me) decides we don't need mux and use some 2nd very new (yet to > discover) > | additional serial link of 2442 CPU<->GSM - this mustn't break anything > | though, things have to be consistent and maximum agnostic of actual > | hw-platform! > > Don't forget we don't have any spare UART on s3c2442 side.
that's why I talk about "very new (yet to discover) additional serial link" Probably my speech was a little cryptic. My point was -just again- sw side should be designed as hw-agnostic as possible. Don't care whether it's vitual MUX channel, a rs232 or USBtty: if it's a serial link, it has to have a device in /dev called tty* So this is a kernel-driver topic, to demux the virtual serial links and provide a device for each. /j
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