Messages in this thread | | | Date | Fri, 16 Jan 2004 12:30:32 +0100 | From | Florian Hinzmann <> | Subject | linux2.6.1 - sym53c8xx: wide:0 documented, but not supported? |
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Hello!
I do own an SCSI host controller from Dawicontrol ( http://www.dawicontrol.com/ ). Model name is "DC-2975 U".
This host controller has a problem wich is covered within the documentation inside kernel 2.6.1 in the file "Documentation/scsi/sym53c8xx_2.txt":
> 10.2.9 Max wide > wide:1 wide scsi enabled > wide:0 wide scsi disabled > Some scsi boards use a 875 (ultra wide) and only supply narrow connectors. > If you have connected a wide device with a 50 pins to 68 pins cable > converter, any accepted wide negotiation will break further data transfers. > In such a case, using "wide:0" in the bootup command will be helpfull.
The controller works fine with linux 2.4.x when "wide:0" is set. But it looks like this option is not supported with linux 2.6.x. I do think so because of two reasons:
1) Setting it seems to have no effect. 2) From looking at the source: File drivers/scsi/sym53c8xx_2/sym_glue.c defines this:
>static char setup_token[] __initdata = > "tags:" "burst:" > "led:" "diff:" > "irqm:" "buschk:" > "hostid:" "revprob:" > "verb:" "debug:" > "settle:" "nvram:" > "excl:" "safe:" > ;
"wide:0" is missing. I am not good with C and I might be wrong here. But reason no. 1 remains true still.
Can anyone confirm if my controller is not supported by linux2.6.x? If yes, does anyone know if there is a patch or some other help available? Is anyone working on this?
Regards Florian
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