> From: linux-usb-owner@xxxxxxxxxxxxxxx [mailto:linux-usb-owner@xxxxxxxxxxxxxxx] On Behalf Of David Mosberger > Sent: Thursday, January 30, 2014 4:35 PM > > We have a need to graft a USB Host controller onto a SPI bus (never > mind the wisdom of doing that, we have little > choice in this particular instance). > > The Cypress CY7C67300 would fit the bill and has a Linux driver, but > is probably too complex and definitely > too expensive for our needs. > > The Maxim MAX3421E is the other option, but it has no Linux driver. > The chip basically implements OHCI over SPI > rather than PCI. Anybody know of any particular reason why there is > no Linux driver? Has anyone already written or > attempted to write an OHCI-over-SPI driver for MAX3421E? ISTR that the MAX3421E does not in fact have an OHCI register interface; I believe it's some proprietary thing. If I'm right, that might help explain why there's no Linux driver for it. -- Paul -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html