* setserial is lieing to us, how to fix?
@ 2005-03-08 4:41 Gene Heskett
2005-03-08 5:05 ` Alan Curry
0 siblings, 1 reply; 3+ messages in thread
From: Gene Heskett @ 2005-03-08 4:41 UTC (permalink / raw)
To: linux-kernel
Greetings;
I'm on the horn with another linux user, and we have a question re the
setserial command. Its reporting the base baud rate, but not the
actual. We need to know the actual settings in use at the moment for
a serial port. How can we discover this?
--
Cheers, Gene
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
99.34% setiathome rank, not too shabby for a WV hillbilly
Yahoo.com attorneys please note, additions to this message
by Gene Heskett are:
Copyright 2005 by Maurice Eugene Heskett, all rights reserved.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: setserial is lieing to us, how to fix?
2005-03-08 4:41 setserial is lieing to us, how to fix? Gene Heskett
@ 2005-03-08 5:05 ` Alan Curry
2005-03-08 6:00 ` Gene Heskett
0 siblings, 1 reply; 3+ messages in thread
From: Alan Curry @ 2005-03-08 5:05 UTC (permalink / raw)
To: gene.heskett; +Cc: linux-kernel
Gene Heskett writes the following:
>
>I'm on the horn with another linux user, and we have a question re the
>setserial command. Its reporting the base baud rate, but not the
>actual. We need to know the actual settings in use at the moment for
>a serial port. How can we discover this?
stty speed -F /dev/ttyXY
The setserial spd_* options can affect speed but they are obsolete so you
shouldn't be using them. If stty says 38400 then the setserial spd_* is in
effect. If spd_normal, then 38400 means 38400. If spd_hi, then 38400 means
57600. If spd_vhi, then 38400 means 115200. If spd_shi, then 38400 means
230400. If spd_warp, then 38400 means 460800. Then there's spd_cust, which is
more weird.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: setserial is lieing to us, how to fix?
2005-03-08 5:05 ` Alan Curry
@ 2005-03-08 6:00 ` Gene Heskett
0 siblings, 0 replies; 3+ messages in thread
From: Gene Heskett @ 2005-03-08 6:00 UTC (permalink / raw)
To: linux-kernel
On Tuesday 08 March 2005 00:05, Alan Curry wrote:
>Gene Heskett writes the following:
>>I'm on the horn with another linux user, and we have a question re
>> the setserial command. Its reporting the base baud rate, but not
>> the actual. We need to know the actual settings in use at the
>> moment for a serial port. How can we discover this?
>
>stty speed -F /dev/ttyXY
>
Just what the doctor ordered, many thanks.
>The setserial spd_* options can affect speed but they are obsolete
> so you shouldn't be using them. If stty says 38400 then the
> setserial spd_* is in effect. If spd_normal, then 38400 means
> 38400. If spd_hi, then 38400 means 57600. If spd_vhi, then 38400
> means 115200. If spd_shi, then 38400 means 230400. If spd_warp,
> then 38400 means 460800. Then there's spd_cust, which is more
> weird.
>-
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--
Cheers, Gene
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
99.34% setiathome rank, not too shabby for a WV hillbilly
Yahoo.com attorneys please note, additions to this message
by Gene Heskett are:
Copyright 2005 by Maurice Eugene Heskett, all rights reserved.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2005-03-08 6:00 UTC | newest]
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2005-03-08 4:41 setserial is lieing to us, how to fix? Gene Heskett
2005-03-08 5:05 ` Alan Curry
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