* [parisc-linux] MUX driver for multiple ports (lines)
@ 2002-09-13 22:25 Christoph Plattner
2002-09-14 0:04 ` [parisc-linux] " Ryan Bradetich
0 siblings, 1 reply; 2+ messages in thread
From: Christoph Plattner @ 2002-09-13 22:25 UTC (permalink / raw)
To: Ryan Bradetich; +Cc: parisc-linux@lists.parisc-linux.org
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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^ permalink raw reply [flat|nested] 2+ messages in thread
* [parisc-linux] Re: MUX driver for multiple ports (lines)
2002-09-13 22:25 [parisc-linux] MUX driver for multiple ports (lines) Christoph Plattner
@ 2002-09-14 0:04 ` Ryan Bradetich
0 siblings, 0 replies; 2+ messages in thread
From: Ryan Bradetich @ 2002-09-14 0:04 UTC (permalink / raw)
To: Christoph Plattner; +Cc: parisc-linux@lists.parisc-linux.org
Hello Christoph,
No, I still have not found any documentation on the
Serial Mux driver. The work I did was referenced
off the HP-UX mux driver.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2002-09-13 22:25 [parisc-linux] MUX driver for multiple ports (lines) Christoph Plattner
2002-09-14 0:04 ` [parisc-linux] " Ryan Bradetich
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