> Question: is this the "right" way to force PIO-only, > or is there a better mechanism that I'm missing. If you want to force ATAPI into PIO modes only then use the ->mode_filter() functionality to drop out the non PIO modes. See pata_hpt37x.c for an example where it does it for some drives only If you want to just force some types of command into using PIO (eg by direction, length etc) then use ->check_atapi_dma(qc) - see pata_it821x for a worked example. Alan -- 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
