Hi Alan: Thanks a lot for the clarification. Regards, kiran On Wed, Sep 24, 2008 at 6:24 PM, Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> wrote: >> 1. Is this library generic for all platforms or is it specific to PC >> because it seems to reference PCI in some places. If I have my host >> controller driver, is the current pata_pcmcia.c (and libata helper >> libraries) sufficient to use the Compact Flash in True-IDE mode or >> something additional is needed. > > libata is generic. > >> 2. The CF TrueIDE mode supports Multiword DMA and Ultra DMA modes of >> data transfer. Your libata-core.c seems to have support for these >> modes. However I assume I will need to provide the DMA Buffer to >> facilitate this. Do I need to provide call back functions to do this >> or I need to implement a seperate Client Driver to support these >> modes? I assume the pata_pcmcia.c uses PIO mode by default? Correct me >> if I am wrong. > > If you are in trueide mode the device behaves as an IDE disk, so you will > need a driver for whatever ATA controller is being used. > > If you are in PCMCIA mode then you only get PIO0 and the pata_pcmcia > driver drives the CF card with the CF card acting as a PCMCIA ATA > controller > > 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
