> > > > Just measure the voltage of your otg vbus pin. > > Ok, I see it's 2.25 volts after I disconnect the microB-A thing . I > should see > 0.8V constantly with nothing connected on the port? > You should see the voltage of vbus pin is less than 0.8v when nothing is connected, we use B_SESSION_VALID (0.8v) to judge it is connected or not. You get 2.25 all the time or it is discharged very slowly? Best regards, Peter -- 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
