Re: [libusb] Error: Failed to initialize libusb. LIBUSB_ERROR_OTHER (-99)

[Xiaofan C. <xia...@gm...>]

On Thu, Dec 15, 2016 at 5:21 PM, Pankaj Charpe
<pan...@se...> wrote:
>
> Hi,
>  I am trying to do usb_mode-switch in my almond 3 router but it is not working.Its seems it is not finding the device ,the router is embed with linux kernel-3.10.14.x .I could not find any entry in /proc/bus/usb/devices for the respective dongle .Previously it was working with linux-2.6.36 .The usb_switchmode module is not able to find the default device as you can see below :
>
>  * usb_modeswitch: tool for controlling "flip flop" mode USB devices
>  * Version 0.9.5 (C) Josua Dietze 2008
>  * Works with libusb 0.1.12 and probably other versions
> Looking for target devices
>  No target device found
> Looking for default devices
>  No default device found. Is it connected? Bye
>
> Could please tell me the reason why it is not switching ?  Do I have to
> enable any driver in Linux kernel ?
>
> Here is the complete log:
>
>
> # usb 1-2: new high-speed USB device number 2 using xhci-hcd
> usb 1-2: New USB device found, idVendor=2020, idProduct=0002
> usb 1-2: New USB device strings: Mfr=2, Product=3, SerialNumber=4
> usb 1-2: Product: MT6225
> usb 1-2: Manufacturer: Network Connect
> usb 1-2: SerialNumber: 686910104253330
> add_ep parameters, dev_speed 3, is_in 1, isTT 0, ep_type 2, maxp 512, interval 1, burst 0, mult 0, ep 0x8de3f980, ep_ctx 0xadeaa080, sch_ep 0x8e149e00
> add_ep parameters, dev_speed 3, is_in 0, isTT 0, ep_type 2, maxp 512, interval 1, burst 0, mult 0, ep 0x8de3f9ac, ep_ctx 0xadeaa060, sch_ep 0x8e149b80
> usb-storage 1-2:1.0: USB Mass Storage device detected
> scsi0 : usb-storage 1-2:1.0
> scsi 0:0:0:0: CD-ROM            UsbModem Storage Disk     6225 PQ: 0 ANSI: 0 CCS
> scsi 0:0:0:1: Direct-Access     UsbModem Storage Disk     6225 PQ: 0 ANSI: 0 CCS
> sd 0:0:0:1: [sda] Test WP failed, assume Write Enabled
> sd 0:0:0:1: [sda] Asking for cache data failed
> sd 0:0:0:1: [sda] Assuming drive cache: write through
> sd 0:0:0:1: [sda] Attached SCSI removable disk
> usb_modeswitch -c /etc_ro/usb/usb_modeswitch_MEDIATEK-2020.conf
>
>  * usb_modeswitch: tool for controlling "flip flop" mode USB devices
>  * Version 0.9.5 (C) Josua Dietze 2008
>  * Works with libusb 0.1.12 and probably other versions
>
> DefaultVendor=0x2020
> DefaultProduct=0x2
> TargetVendor=0x2020
> TargetProduct=0x4000
> TargetClass=0x0
> DetachStorageOnly=0
> HuaweiMode=0
> MessageEndpoint=0x1
> MessageContent="5553424312345678000000000000061b000000020000000000000000000000"
> ResponseEndpoint=0x81
>
> Interface=0x0
>
> Looking for target devices
>  No target device found
> Looking for default devices
>  No default device found. Is it connected? Bye
>

It seems that you are using a very old version of usb_modeswitch.
Please try the latest version or ask in the usb_modeswitch side.


-- 
Xiaofan