[parisc-linux] MUX driver for multiple ports (lines)
Christoph Plattner
christoph.plattner@gmx.at
Sat, 14 Sep 2002 00:25:10 +0200
Hallo Ryan,
have you already got docu on the serial MUX board ?
Or where do you have the information about `#define's
from. Is the MUX_LINE_OFFSET (= 0x80) the key point.
I have tried to access the board at
membase + MUX_OFFSET + line * MUX_LINE_OFFSET,
but the first write access to /dev/ttyB1 results in
a hang up (completely, even no network interrupts
were processed !).
Operates the MUX driver in polling mode ? Not in IRQ mode ?
Christoph
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