Messages in this thread | | | Date | Wed, 8 Sep 1999 10:44:37 +1000 | From | Paul Mackerras <> | Subject | Re: MO-Disk on PPC with 53C94 SCSI-chip |
| |
> Can you tell us what the difference is between this driver and the generic > 53c94 driver in the same directory? Also, is there a source of docs other > than the code there (for us SCSI newbies :-)?
I assume you're talking about the mca_53c9x.c driver? I don't think that existed when I started doing mac53c94.c. I would expect that the main differences are in the areas of DMA and interrupt handling. The mca_53c9x driver is probably worth a look. I used the esp.c driver as a reference as the ESP chip in Suns is apparently a 53c96 and has marked similarities to the 53c94. There appear to be no fewer than 4 esp drivers there. :-)
I never found a definitive manual or data sheet on the 53c94, unfortunately. For documentation on the SCSI-2 standard, I have a late draft that I got by ftp from somewhere. The actual final standard isn't available on the web as it costs real money. :-(
Paul.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |