On Tue, Apr 04, 2017 at 12:36:00PM +0200, Alexander Kozyrev wrote: > Hi all! > > Have troubles with Ragentek chip in Mediatek Leagoo Android phone. It's > tries to connect as ttyACM0 device and ttyUSB0 - unsuccessful. > > [2.219806] usb 1-1: new high-speed USB device number 36 using xhci_hcd > [2.385119] usb 1-1: New USB device found, idVendor=0e8d, idProduct=2008 > [2.385125] usb 1-1: New USB device strings: Mfr=2, Product=3, > SerialNumber=4 > [2.385128] usb 1-1: Product: j5808 > [2.385130] usb 1-1: Manufacturer: Ragentek > [2.385132] usb 1-1: SerialNumber: 0123456789ABCDEF > [3.368257] usb 1-1: USB disconnect, device number 36 > [3.742359] usb 1-1: new high-speed USB device number 37 using xhci_hcd > [3.908089] usb 1-1: New USB device found, idVendor=0e8d, idProduct=201c > [3.908095] usb 1-1: New USB device strings: Mfr=2, Product=3, > SerialNumber=4 > [3.908097] usb 1-1: Product: j5808 > > > [3.908099] usb 1-1: Manufacturer: Ragentek > [3.908101] usb 1-1: SerialNumber: 0123456789ABCDEF > [6.436388] usb 1-1: USB disconnect, device number 37 > [8.691575] usb 1-1: new high-speed USB device number 38 using xhci_hcd > [8.856068] usb 1-1: New USB device found, idVendor=0e8d, idProduct=2000 > [8.856073] usb 1-1: New USB device strings: Mfr=1, Product=2, > SerialNumber=0 > [8.856077] usb 1-1: Product: MT65xx Preloader > [8.856080] usb 1-1: Manufacturer: MediaTek > [8.878070] usbserial_generic 1-1:1.0: The "generic" usb-serial driver is > only for testing and one-off prototypes. > [8.878074] usbserial_generic 1-1:1.0: Tell linux-usb@xxxxxxxxxxxxxxx to > add your device to a proper driver. > [8.878076] usbserial_generic 1-1:1.0: generic converter detected > [8.878333] usb 1-1: generic converter now attached to ttyUSB0 > [8.918180] usbserial_generic 1-1:1.1: Generic device with no bulk out, > not allowed. > [8.918191] usbserial_generic: probe of 1-1:1.1 failed with error -5 > [8.918207] cdc_acm: probe of 1-1:1.1 failed with error -16 > [11.358968] usb 1-1: USB disconnect, device number 38 The driver does bind to interface 0 above, but then the device disconnects itself a couple of seconds later. > [11.359186] generic ttyUSB0: generic converter now disconnected from > ttyUSB0 > [71.359205] usbserial_generic 1-1:1.0: device disconnected > [73.499064] usb 1-1: new high-speed USB device number 39 using xhci_hcd > [73.663695] usb 1-1: New USB device found, idVendor=0bb4, idProduct=0c01 > [73.663716] usb 1-1: New USB device strings: Mfr=1, Product=2, > SerialNumber=3 > [73.663718] usb 1-1: Product: Android > [73.663720] usb 1-1: Manufacturer: MediaTek > [73.663722] usb 1-1: SerialNumber: X560I1ZR5A241388 And here it comes up with a new personality (if you didn't switch the device). > [root@gigabyte flash-kernel]# ll /dev/ttyUSB0 > ls: cannot access /dev/ttyUSB0: No such file or directory How did you get the generic driver to bind to 0e8d:2000? You need to tell the generic driver to bind also to 0bb4:0c01, for example, echo 0bb4 0c01 > /sys/bus/usb-serial/drivers/generic/new_id Johan -- 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
