Serial Port Bug? Solved
Karl Larsen
k5di at zianet.com
Thu Nov 29 01:22:10 UTC 2007
fred smith wrote:
> On Wed, Nov 28, 2007 at 02:34:09PM -0700, Karl Larsen wrote:
>
>> Karl Larsen wrote:
>>
>>> Lamar Owen wrote:
>>>
>>>> On Wednesday 28 November 2007, Karl Larsen wrote:
>>>>
>>>>
>>>>> Lamar Owen wrote:
>>>>>
>>>>>
>>>>>> Is the serial port enabled in the BIOS?
>>>>>>
>>>>>>
>>>>
>>>>> I have looked and found nothing in the many pages of BIOS things
>>>>> but
>>>>> I could of missed it.
>>>>>
>>>>>
>>>> What model Biostar MB is this? All their manuals are online; older
>>>> ones especially included screenshots of the setup screens. Look for,
>>>> in the 'integrated peripherals' setup section the 'COM1' and 'COM2'
>>>> settings (the names might be different; I don't have a Biostar board
>>>> in front of me (got one at home, though, that I might put on the
>>>> breadboard and check out)).
>>>>
>>>>
>>>>
>>>>> This is from #setserial -a /dev/ttyS0:
>>>>>
>>>>> [root at k5di ~]# setserial /dev/ttyS0 -a
>>>>> /dev/ttyS0, Line 0, UART: unknown, Port: 0x03f8, IRQ: 4
>>>>> Baud_base: 115200, close_delay: 50, divisor: 0
>>>>> closing_wait: 3000
>>>>> Flags: spd_normal skip_test auto_irq
>>>>>
>>>>>
>>>>
>>>>> This I think is good.
>>>>>
>>>>>
>>>> UART is unknown; no, this is bad. If the kernel can't detect the
>>>> type of UART (it will likely be 16550A or similar for virtually all
>>>> modern MB's) then it can't use the port.
>>>>
>>>> On my own laptop, which does not have ANY serial ports:
>>>> [root at localhost ~]# setserial /dev/ttyS0 -a
>>>> /dev/ttyS0, Line 0, UART: unknown, Port: 0x03f8, IRQ: 4
>>>> Baud_base: 115200, close_delay: 50, divisor: 0
>>>> closing_wait: 3000
>>>> Flags: spd_normal skip_test auto_irq
>>>>
>>>> [root at localhost ~]#
>>>> So setserial doesn't help troubleshoot this.
>>>>
>>>> On the box with one serial port:
>>>> [root at itadmin ~]# setserial /dev/ttyS0 -a
>>>> /dev/ttyS0, Line 0, UART: 16550A, Port: 0x03f8, IRQ: 4
>>>> Baud_base: 115200, close_delay: 50, divisor: 0
>>>> closing_wait: 3000
>>>> Flags: spd_normal skip_test
>>>>
>>>> [root at itadmin ~]#
>>>> UART is a 16550A, and works.
>>>>
>>>>
>>> OK I do not have a manual about BIOS. If they have one I will get it!
>>>
>>>
>>>
>>>
>> I dropped to the Bios. Your telling me it is in Integrated
>> Periferals did the trick. I had to hit enter on one I never have before
>> and there was Serial Port 1 disabled! I got it set to auto and now it works!
>>
>
> Great!
>
>
>> I d/l the manual but it is a .exe file and I no windows to open it :-)
>>
>
> Karl, sometimes files like that are self-extracting zip files, on the
> off-chance that this one is too, you may try "unzip -v filename.exe" and
> see if you strike it lucky.
>
>
>
No luck. I tried and unzip prints a lot of can't do it stuff :-)
--
Karl F. Larsen, AKA K5DI
Linux User
#450462 http://counter.li.org.
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