[sane-devel] umax_pp slow

[svoltz@wanadoo.fr]

On Thu, Sep 30, 2004 at 04:42:43PM -0500, Joe Henley wrote:
> Stef,
> 
> Thanks very much for your reply.  I changed my umax_pp.conf file to read:
> -------------------------------
> option buffer 8388608
> port 0x378
> option astra 2000
> 
> Then I ran the export command, then the scanimage command.  The log 
> contents are:
> -------------------------------------------------------------
> [sanei_debug] Setting debug level of umax_pp_low to 1.
> [umax_pp_low] SANE_INB level 3
> [umax_pp_low] sanei_umax_pp_InitPort(0x378,)
> [umax_pp_low] sanei_ioperm(0x378, 8, 1) OK ...
> [umax_pp_low] UMAX Astra 1220/1600/2000 P ASIC detected (mode=31)
> [umax_pp_low] registerRead, found 0xFF expected 0x00 (umax_pp_low.c:6633)

	Weird, your paralle port can't do EPP when used directly, while it
works with ppdev.

> [umax_pp_low] *** It appears that EPP data transfer doesn't work    ***
> [umax_pp_low] *** Please read SETTING EPP section in sane-umax_pp.5 ***
> [umax_pp_low] Hardware can't do ECP, giving up (umax_pp_low.c:6856) ...
> [umax_pp_low] No EPP or ECP mode working, giving up ... (umax_pp_low.c:7475)
> 
> The results surprised me.  I ran ppdiag to check and got:
> ---------------------------------------------------
> S01: parport built as module
> S02: parport0:
> S02:    modes:PCSPP,TRISTATE,EPP
> S02:    ADDR :0x378
> S02:    IRQ  :no IRQ used
> S02:    DMA  :no DMA used
> S03: no parport parameters
> S10: ppdev built as module
> S12: /dev/parport0 exists ...
> S12: /dev/parport0 is readable ...
> S12: /dev/parport0 is writable ...
> successfull end ....
> 
> I double checked my BIOS and it's set to EPP, port 378 and IRQ 7.
> 
> So now I'm really stumped.  Please point me in the right direction.
> 
> If it's relevant:  using RedHat 9, kernel is 2.4.20-20.9, xsane is 
> version 0.96, sane-backend is: 1.0.14 with the 6.3 patch for umax_pp, 
> mobo is an Intel 875PBZ.
> 
> Joe
> 
> PS:  Sorry about RoadRunner blocking your replies.  I don't know why.

	Try tweaking the parport parameters in /etc/modules.conf :

alias parport_lowlevel parport_pc
options parport_pc io=0x378 io_hi=0x778 irq=7 dma=none

	Another thing to try is to check is the kernel you use is
compiled with the followwing options in 'Parallel port support':

    <M> Parallel port support
    <M> PC-style hardware
    < > Multi-IO cards (parallel and serial)
    [*] Use FIFO/DMA if available (EXPERIMENTAL)
    [*] SuperIO chipset support (EXPERIMENTAL)
    < > Support for PCMCIA management for PC-style ports
    [ ] Support foreign hardware
    [*] IEEE 1284 transfer modes 

	What other parallel port BIOS setting do you have ?

Regards,
	Stef