On 01/17/2010 08:56 AM, Bart Hartgers wrote: > Before only the timings for master were set. Datasheet can be found > here: ftp://ftp.vtbridge.org/Docs/Storage/DS_VT6421A_100_CCPL.PDF > Surprisingly, a slave drive works without this patch. According to the > datasheet, the controller by default derives the DMA mode from the > Set Features command issued to a drive. Not sure about the PIO > timings, though. The real problem is that the timings for the master > effectively are the ones tuned for the slave. If these support > different UDMA-settings, there is trouble, especially when the slave > supports a higher UDMA than the master. > > Anyhow, using the same mechanism for both master and slave seems like > a good idea. > > Signed-off-by: Bart Hartgers <bart.hartgers@xxxxxxxxx> Acked-by: Tejun Heo <tj@xxxxxxxxxx> Thanks. -- tejun -- 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
