Re: [hpoj-devel] Kernel 2.4.1 module: PATCH

[Burkhard K. <bu...@bu...>]

Mika, I've have forwarded your mail to David.

At the moment I don't understand your problem - it looks
like the devices stops talking to your host after successfully
starting to scan.

Are you running an SMP kernel? In that case you might want to
try a uniprocessor kernel first - espially if you happen to 
have just one processor in your box. (Many distributitions)
come with SMP kernels which is not always the best choice.

Without seeing the debug output from ieee12844pp.o I it's
impossible to determine exactly what happens. 
Please load the modules with Parameter "debug=2".

This produces a huge amount of messages in /var/log/messages
and some might even get lost because of the high rate at
which debug messages are created. Therefore it might be 
necessary to uncomment the linebuf define in line 73 of 
ieee12844pp.c. 

Send the debug output directly to me, not to the list. 

Mika Saari
> Hello,
> 
>     Sorry again I should read the documentation better the usenibble=1 was
> mentioned there. I added the parameter to ieee12844pp module and the scanner
> started the scanning (which it didn't do earlier) but after first part of
> scanning it stopped and gave this error message (everything like it come to the
> screen)
> 
> ----------------------------------------
> [root@unicorn /root]# insmod parport
> Using /lib/modules/2.4.2/kernel/drivers/parport/parport.o
> [root@unicorn /root]# insmod parport_pc
> Using /lib/modules/2.4.2/kernel/drivers/parport/parport_pc.o
> [root@unicorn /root]# insmod /usr/local/lib/ieee12844.o
> IEEE1284.4 protocol layer for Linux installed
> [root@unicorn /root]# insmod /usr/local/lib/ieee12844pp.o usenibble=1
>    ieee12844pp: IEEE1284.4 device found on parport0:
>    HEWLETT-PACKARD OFFICEJET PRO 1150C;
>    device registered to IEEE1284.4 protocol layer as link mlcpp0
> 
> [root@unicorn /root]# scanimage --test &> debug.txt
> PAR_WAIT_SET_CLEAR(l=d9991abc,set=0x0000,clear=0x0040): timed out waiting for
> event=9!
> mlcpp0: mlcpp_intr ERROR -110
>   state=5 event=9 reset=7 recv=3 rcv=0 send=2
> mlc: mlcpp0: link error -110
> [root@unicorn /root]# PAR_WAIT_SET_CLEAR(l=d9991abc,set=0x0098,clear=0x0040):
> timed out waiting for event=23!
> ----------------------------------------
> 
> I also enclose the debug.txt with this mail, hope it helps.
> 

Burkhard
-- 
Burkhard Kohl			bu...@bu...