On Tue, 25 Jan 2011 17:10:49 -0500 Mark Lord wrote: > On 11-01-25 12:05 PM, Ahmed S. Darwish wrote: > > > > My current x86 laptop includes the very common ATA PIIX controller. > > > ata_piix is just about ideal for this sort of thing. > > Except, don't use the BIOS to write the logs, > but rather code/use a very simple set of polling-PIO > functions to talk directly through the PIIX to the drive. > > Really really simple code to do that, and it would likely > work with anything ata-piix, and most other non-AHCI chipsets too. > > Not perfect, but probably good enough for a lot of scenarios. > The old hd.c driver shows how to read/write a sector at a time, > and that kind of code is easily converted to simply poll for completion. I don't know how/where to find it, but Rusty Russell had a version of this many, many years ago. --- ~Randy *** Remember to use Documentation/SubmitChecklist when testing your code *** -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
