> > > > I just don't understand why they are OK on Linux host PC and failed on > > Linux Host embedded MUSB OTG. > > PCs have to source up to 500mA load on usb bus, embedded otg/hosts only up > to 100mA. > Maybe it is one explanation for these bugs. I found the bug usb device: USB SD card reader MaxPower = 250mA Apple 30G iPod MaxPower = 500mA But the latest 80G iPod Classic which also has MaxPower = 500mA works fine with MUSB. For this current source problem, I remember there are some external VBUS charger IC can help the USB OTG to provide more than 100mA current. -Bryan -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
