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Re: serial line speed of 115200
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From: |
Roland McGrath |
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Subject: |
Re: serial line speed of 115200 |
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Date: |
Thu, 26 Apr 2001 20:41:05 -0400 (EDT) |
> GNU Mach currently only supports speedsup to 38400.
The com driver actually goes to 57600, I think.
But chario.c checks NSPEEDS.
> Will it work to set a divisor of "1" in i386/i386at/com.c and a new symbol
> "B115200 16" in include/device/tty_status.h to implement 115200 speed?
No, but it will work if you add B57600 16 and B115200 17, and make NSPEEDS 18.
> I know zip about modem programming, and it might require some special setup
> to get working. I tried to look at the linux kernel code, but it is covering
> too much hardware to be comprehensible for me.
It looks to me like linux would do the same thing for 115200 that gnumach
would do with that change.