[PLUG] RadioShack Gigaware USB to serial (DB9) converter *FREE*

Johnathan Mantey manteyjg at gmail.com
Mon Oct 7 14:28:10 UTC 2019


I'm guessing the Prolific chip in the converter is a knock off, and has
been intentionally disabled by the latest Windoze versions.  FTDI and
Prolific both have a problem with counterfeit devices.  The solution they
applied was to make their drivers refuse to work with counterfeit HW.  I've
found Linux to be more forgiving.

On Sun, Oct 6, 2019 at 7:21 PM King Beowulf <kingbeowulf at gmail.com> wrote:

> Hello pluggers,
>
> My corporate overlord has migrated us to Windows 10 laptops. The
> USB-to-serial converter worked on Windows XP and Windows 7 but now has
> compatibility issues on Win10. Radioshack is now defunct, and Gigaware
> is some OEM phantom brand.
>
> This cable uses the Prolific PL2303 chipset (no idea which version). It
> appears to work on my linux box, but I can't really test since I no
> longer have any serial devices.
>
> Offering this gadget free to anyone in the Portland/Vancouver area.
> Respond via email kingbeowulf at gmail.com
>
> -Ed K.
>
> The stats are:
>
> Dmesg:
> ------
> [693328.475439] usb 3-1: New USB device found, idVendor=05ad,
> idProduct=0fba
> [693328.475446] usb 3-1: New USB device strings: Mfr=1, Product=2,
> SerialNumber=0
> [693328.475451] usb 3-1: Product: USB-Serial Controller
> [693328.475454] usb 3-1: Manufacturer: Prolific Technology Inc.
> [693328.534119] usbcore: registered new interface driver usbserial
> [693328.534140] usbcore: registered new interface driver usbserial_generic
> [693328.534153] usbserial: USB Serial support registered for generic
> [693328.534938] usbcore: registered new interface driver pl2303
> [693328.534965] usbserial: USB Serial support registered for pl2303
> [693328.535020] pl2303 3-1:1.0: pl2303 converter detected
> [693328.537552] usb 3-1: pl2303 converter now attached to ttyUSB0
>
> lsmod:
> ------
> Module                  Size  Used by
> pl2303                 10103  0
> usbserial              28120  1 pl2303
>
> lsusb:
> ------
> $ lsusb -v -d 05ad:0fba
>
> Bus 003 Device 008: ID 05ad:0fba Y.C. Cable U.S.A., Inc.
> Couldn't open device, some information will be missing
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               1.10
>   bDeviceClass            0
>   bDeviceSubClass         0
>   bDeviceProtocol         0
>   bMaxPacketSize0        64
>   idVendor           0x05ad Y.C. Cable U.S.A., Inc.
>   idProduct          0x0fba
>   bcdDevice            3.00
>   iManufacturer           1
>   iProduct                2
>   iSerial                 0
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           39
>     bNumInterfaces          1
>     bConfigurationValue     1
>     iConfiguration          0
>     bmAttributes         0xa0
>       (Bus Powered)
>       Remote Wakeup
>     MaxPower              100mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           3
>       bInterfaceClass       255 Vendor Specific Class
>       bInterfaceSubClass      0
>       bInterfaceProtocol      0
>       iInterface              0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x81  EP 1 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x000a  1x 10 bytes
>         bInterval               1
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x02  EP 2 OUT
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0040  1x 64 bytes
>         bInterval               0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x83  EP 3 IN
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0040  1x 64 bytes
>         bInterval               0
>
>
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