Robert Hancock wrote:
No idea about IDE, but libata does not wait at all for DRQ assertion specifically, after issuing the PIO command it waits for BSY to be deasserted and then expects either DRQ, DF or ERR to be set, else it's a host state machine violation and triggers error handling. According to the ATA spec, the device is specifically not allowed to set DRQ to one while BSY is not asserted.
IDE is really only waiting 50msec in this case? That seems rather
The whole 100 ms if you look at how WAIT_DRQ is #define'd... MBR, Sergei -- 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