Parallel Port doesn't detect EPP

Parallel Port doesn't detect EPP

[Udo A. Steinberg]

Hi,

I have just two questions regarding parallel port support with my
Via686a chipset:

#1) EPP is no longer listed as supported transfer mode, but it used
    to be.

#2) What is that "Can't probe parallel port" message?

Regards,
Udo.

PnPBIOS: Parport found PNPBIOS PNP0401 at io=0378,0778 irq=7 dma=3
0x378: FIFO is 16 bytes
0x378: writeIntrThreshold is 8
0x378: readIntrThreshold is 8
0x378: PWord is 8 bits
0x378: Interrupts are ISA-Pulses
0x378: ECP port cfgA=0x10 cfgB=0x00
0x378: ECP settings irq=<none or set by other means> dma=<none or set by other means>
parport0: PC-style at 0x378 (0x778), irq 7, dma 3 [PCSPP,TRISTATE,COMPAT,ECP,DMA]
parport0: cpp_daisy: aa5500ff(88)
parport0: assign_addrs: aa5500ff(88)
parport0: Printer, Hewlett-Packard HP LaserJet 6L
parport_pc: Strange, can't probe Via 686A parallel port: io=0x378, irq=7, dma=3

Re: Parallel Port doesn't detect EPP

[Tim Waugh]

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On Mon, Sep 03, 2001 at 09:46:31PM +0200, Udo A. Steinberg wrote:

> #1) EPP is no longer listed as supported transfer mode, but it used
>     to be.

<rule_out_the_obvious>
Have you changed your BIOS setting since you last tried it?  What does
your BIOS say about your parallel port?
</rule_out_the_obvious>

Tim.
*/

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Re: Parallel Port doesn't detect EPP

[Steffen Moser]

Hi,

* On Mon, Sep 03, 2001 at 09:46 PM (+0200), Udo A. Steinberg wrote:

> I have just two questions regarding parallel port support with my
> Via686a chipset:
> 
> #1) EPP is no longer listed as supported transfer mode, but it used
>     to be.

What's your BIOS setting for your parallel port? 

I've got quite the same "problem" when setting it to "ECP+PPP". When 
configuring "EPP" mode it runs well (and my Iomega ZIP drive ("ppa") 
is able to use 32 bit mode) - I don't need "ECP" mode here.

My motherboard ist an "Epox 8kta+". 

Regards,
Steffen

Re: Parallel Port doesn't detect EPP

[Udo A. Steinberg]

Tim Waugh wrote:

> > #1) EPP is no longer listed as supported transfer mode, but it used
> >     to be.
> 
> <rule_out_the_obvious>
> Have you changed your BIOS setting since you last tried it?  What does
> your BIOS say about your parallel port?
> </rule_out_the_obvious>

My BIOS setting has always been "ECP+EPP". After Steffen's mail regarding
"ECP+EPP" I've changed my parport BIOS setting to "EPP" and using 2.4 I
now get:

parport0: PC-style at 0x378, irq 7 [PCSPP,TRISTATE,EPP]

I also tried 2.2. with "ECP+EPP" and it detects both ECP and EPP:
[SPP,ECP,ECPEPP,ECPPS2]

Apparently 2.4. doesn't detect the parport settings the same way 2.2. does.

Regards,
Udo.