Hello ! > > I've got the HP ScanJet 4p with SCSI card on SymbiosLogic ncr53c400a chip > > And I have a big trouble with it :(
The solution has been found and I think, what it should be posted to this mail-list for all people, who search through archives for the answers. I`ve found the posting of Stephen R. van den Berg to the linux-scsi mail-list: http://www.geocrawler.com/mail/msg.php3?msg_id=3545482&list=58 ~~~ Start ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ FROM: Stephen R. van den Berg DATE: 04/03/2000 12:08:32 SUBJECT: RE: Re; ncr53c400a [skip] Actually, I disassembled the mini400i.sys driver, and found the magic incantation which enables the HP-card and maps it into the IO-space. The mapping seems to work just fine. The only part I`m still struggling with is the fact that the NCR5380.c driver appears to be *hopelessly* non-SMP safe (and I happen to be running an SMP box). In case anyone cares (I`ll be including this in an official patch later, which also fixes the SMP-compliance, I hope), this is what the HP card needs to get mapped at port 0x280: /* wakeup sequence for the HP-NCR53C400A */ outb(0x0f, 0x779); outb(0x22, 0x379); outb(0xf0, 0x379); outb(0x20, 0x379); outb(0x80, 0x379); outb(0x80, 0x379); [skip] ~~~ End ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ And what's you should do for the card to work: 1. Replace wakeup sequence in /usr/src/linux/drivers/scsi/g_NCR5380.c as above. 2. Compile the driver: gcc -I/lib/modules/$(uname -r)/build/include -Wall -D__KERNEL__ -DMODULE -O2 -c -o g_NCR5380.o g_NCR5380.c 3. Check it: # insmod g_NCR5380.o ncr_53c400a=1 ncr_addr=0x280 The card should work now, as written in all READMEs, HOWTOs and so on. > I don't have HP scanners, but some Mustek scanners also use NCR53c400a > chips. I always use this line: > > modprobe g_NCR5380 ncr_addr=0x280 ncr_53c400a=1 Yes, it worked after I had applied the patch. > > There is one jumper on the card (unlabeled). I tried to change it, but > > there wasn't any effect. > > Maybe enable/disable IRQ? Who knows ? :-/ Thanx for your help ! -- Best regards, Anastasija (aka WhiteUnicorn) Welcome to http://Anastasija.virtualave.net
