Also FWIW, at least through RedHat 7.3 ECP-mode support has *not* been
built into RedHat's distributions; to get ECP support you have to rebuild
the kernel (well, the modules, actually) and set CONFIG_PARPORT_PC_FIFO
to "y".
-- Dave Strauss
On Thu, 01 May 2003 10:16:45 -0400, Kevin<kjsisson@bellsouth.net> wrote:
>
> FWIW, I have been using the older VMware versions (up to 2.04) on
> Mandrake systems, from the 2.2 to 2.4 kernels (currently 2.4.18, MD
> 8.2). I set my parallel port to ECP in the BIOS, and put the lines
>
> alias parport_lowlevel parport_pc
> options parport_pc io=0x378 irq=5 dma=3
>
> in my /etc/modules.conf file. I believe that all necessary PP ECP
> support is either compiled into the Mandrake kernel or available as a
> loadable module, because I use the stock kernel and don't explicitly
> load any other modules (other than the VMware ones of course). I then
> set the parallel port in VMware to /dev/parport0
> with 'bidirectional' checked. This allows me to use my PP scanner from
> the VMware windows session.
>
>
> Kevin
>
>
>
> Bret Comstock Waldow wrote:
>
> >Hi,
> >
> >The background is I'm trying to get parallel port access using VMware on
> >a Red Hat 9 linux system.
> >
> >The hardware is an IBM T21 laptop. It has a parallel port, recognized
> >and working fine in Windows.
> >
> >VMware wants an ECP port to allow two-way communication between programs
> >running in the VMware session and the outside world. There is an option
> >in the BIOS to set the port to ECP Mode.
> >
> >After booting into Linux, I can do this:
> >
> >[bret@ganesha learning]$ cat /proc/sys/dev/parport/parport0/base-addr
> >888 1912
> >[bret@ganesha learning]$ cat /proc/sys/dev/parport/parport0/irq
> >7
> >[bret@ganesha learning]$ cat /proc/sys/dev/parport/parport0/dma
> >1
> >[bret@ganesha learning]$ cat /proc/sys/dev/parport/parport0/modes
> >PCSPP,TRISTATE
> >
> >The first three settings correspond to the settings in the BIOS. I'm
> >not sure about the last.
> >
> >There are other settings for the port mode, with other responses:
> >BIOS response
> >
> >Output Only PCSPP
> >Bi-Directional PCSPP,TRISTATE
> >EPP PCSPP,TRISTATE,EPP
> >
> >Should the response for ECP be PCSPP,TRISTATE,ECP? It's not, and VMware
> >reports on start-up that the parallel port doesn't support ECP mode and
> >won't be used.
> >
> >Thanks in advance,
> >Bret
> >
> >
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This archive was generated by hypermail 2b29 : Thu May 01 2003 - 10:52:48 EDT