hi: 2011/1/12 Felipe Balbi <balbi@xxxxxx>: > Hi, > > On Wed, Jan 12, 2011 at 03:16:27PM +0100, Johannes Reisinger wrote: >> >Are they both designed for OTG or only host or only device chip? >> >> we will have two interfaces, one for host and the other one for device >> operation. To replace them both with only one OTG is not an option, >> because we have use-cases where we need both interfaces concurrently. > > So you have an OTG transceiver to switch operation between host and > device, right ? > > Considering that, is the transceiver ULPI compliant ? if it is, then you > can probably use the nop-xceiv driver for that. But you sure need a > driver. after google the ULPI, I found it is a new interface to decrease the original pin# of UTMI. But if I remember correctly, usb driver usually will not touch this part, since it is wrapped in host/device controller, right? Regards, miloody -- 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