[mythtv-users] serial ports

[Allan Wilson]

On 5/31/06, yan seiner <yan at seiner.com> wrote:
>
> brian boyle wrote:
>
> > Hey folks.
> >
> >    I just recently replaced my backend server with something newer and
> > much more robust (P4D 3gig with a gig of ram and 1.25 terabytes of
> > storage). i am very happy with the system except the fact that many
> > new motherboards only come with one serial port. this is the case for
> > me and this is a problem as i am feeding my two PVR-250's from my two
> > satellite receivers and i need the second port to change channels on
> > the second receiver. i bought a startech pci serial port card, but i
> > am having trouble with it. I spoke with them and they did not have a
> > lot to day about it and i am hoping someone here will be able to help.
> > when i do an LSPCI i get the following
> >
> >  06:02.0 Serial controller: NetMos Technology PCI 9835 Multi-I/O
> > Controller (rev 01) (prog-if 02 [16550])
> >         Subsystem: LSI Logic / Symbios Logic Unknown device 0001
> >         Flags: medium devsel, IRQ 17
> >         I/O ports at 1070 [size=8]
> >         I/O ports at 1068 [size=8]
> >         I/O ports at 1060 [size=8]
> >         I/O ports at 1058 [size=8]
> >         I/O ports at 1050 [size=8]
> >         I/O ports at 1040 [size]
> >
> > this makes me believe that the OS is aware of the card and it is just
> > not installing the drivers. i am including a list of /proc/modules
> > just in case it helps.
> >
>
> It probably doesn't have the drivers compiled.  Did you look in your
> kernel  config to see if you have non-standard serial port support built
> as a module?  I would google for 'etMos Technology PCI 9835' and see if
> you get any hints on what driver you need.  Also make sure you have
> support for more than 4 serial ports enabled.  Look in your log files; I
> have two Siig CyberSerial cards and depending on the slot and kernel
> version they have shown up as ttyS56 and ttyS57 - so if you only have
> support for 4 serial ports you will never see them.
>
> Serial ports and multi-io cards should be pretty much no-brainers unless
> it's an intelligent card, like an Eicon or Digi.
>
> --Yan
>
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You may have to turn them on manually using the setserial command and then
put that in a startup file. We use this on some of our older systems to give
you an example

setserial /dev/ttyS? port 0x????
setserial /dev/ttyS? -v autoconfig
setserial /dev/ttyS? irq ?

You have the I/O addresses and IRQ above to use and you can look in

/proc/tty/driver/serial

to see if it sees the port.

Allan
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