On Fri, 16 Oct 2009 viral.mehta@xxxxxxxxxxxxxx wrote: > >> I have connector which is micro-to-miniA. If I connect any PenDrive to > >> it, it fails in enumeration. > >> It fails in hub.c file at function hub_port_wait_reset() at line > >> if ((portchange & USB_PORT_STAT_C_CONNECTION)) > >> > >> portchange comes up 3. And so as condition is true, it returns -ENOTCONN > >> > >> Well, strange thing is all other devices except pendrives works fine. > >> I tried my cell phone (which is detected as SCSI mass storage), and usb > >> audio device and etc.... > >> > >> But none of the pendrive works... I tried Transcend, Sandisk... etc. > > > > It's possible that the OTG port is not capable of supplying enough > > current for the pendrives to work. > > Could that (OTG not supplying enough current) be the reason for get_status_port() > returning value 3 for portchange ? Yes, it could be. That's why I mentioned it as a possibility. > Is there any chances that I am missing out any silly thing in kernel configuration ? No, I don't think so. Another possibility is a problem with the connector: If it doesn't make firm contacts then you could get those disconnections. Alan Stern -- 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
