[vbox-dev] Supported Remote USB Devices

[Ira Hill]

Klaus,

     Thanks for the information! 'ls -v -s <bus>:<device>' returns:

Bus 003 Device 009: ID 3923:717b National Instruments Corp.
Device Descriptor:
   bLength                18
   bDescriptorType         1
   bcdUSB               2.00
   bDeviceClass            0 (Defined at Interface level)
   bDeviceSubClass         0
   bDeviceProtocol         0
   bMaxPacketSize0        64
   idVendor           0x3923 National Instruments Corp.
   idProduct          0x717b
   bcdDevice            1.04
   iManufacturer           1 National Instruments
   iProduct                2 NI USB-6009
   iSerial                 3 0163C8C2
   bNumConfigurations      1
   Configuration Descriptor:
     bLength                 9
     bDescriptorType         2
     wTotalLength           46
     bNumInterfaces          1
     bConfigurationValue     1
     iConfiguration          0
     bmAttributes         0x80
       (Bus Powered)
     MaxPower              500mA
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        0
       bAlternateSetting       0
       bNumEndpoints           4
       bInterfaceClass         0 (Defined at Interface level)
       bInterfaceSubClass      0
       bInterfaceProtocol      0
       iInterface              0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x81  EP 1 IN
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0040  1x 64 bytes
         bInterval               5
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x01  EP 1 OUT
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0040  1x 64 bytes
         bInterval               5
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x82  EP 2 IN
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0040  1x 64 bytes
         bInterval               5
       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               5
Device Status:     0x0000
   (Bus Powered)

Since the transfer type is set to Bulk, is there some hope here? I'm 
happy to try out things (patches,source edits, etc..) in an attempt to 
get things working.
Also, I don't have a webcam with me at the moment, but I'll also try 
that later.

Thanks,
Ira

> Hi Ira,
>
> On 23.05.2013 20:06, Ira Hill wrote:
>> Everyone,
>>
>>      My goal is to use a usb data acquisition device (National Instruments
>> USB-6009) over remote usb. My host is Ubuntu x86-64 running Windows XP
>> as the guest. I'm connecting to my virtual session with rdesktop-vrdp on
>> my x86 laptop running Arch linux. Using usb thumb-drives and other
>> storage devices work great over remote usb. Unfortunately, the data
>> acquisition device does not work properly over remote usb.
>>
>>     The data acquisition device does show up in the virtual machine but
>> the National Instruments software says the hardware has an unknown
>> failure. I'm guessing the hardware initialization process isn't working
>> smoothly over remote usb. Is there any chance in getting such devices
>> working over remote usb? Also, the device does work in my Windows XP
>> guest if I plug it directly into the host machine.
> This problem description (locally it works, remotely it fails) hints
> that the device needs isochronous transfers (would need to be confirmed
> by looking at the endpoint descriptors, please provide the output of
> "lsusb -v -s <bus>:<device>"), which we didn't attempt to implement over
> the remote USB redirection. The network latency/timing jitter would
> cause a lot of transmission problems due to the generally very tight
> deadlines, which we're struggling to meet in the local case already.
>
> If you happen to have a USB webcam (99% of them use isoc transfers) or a
> USB audio device you could confirm this yourself. Locally they generally
> work fine (with sporadic glitches when the non-realtime behavior of the
> involved OSes and VirtualBox causes a transfer to miss the deadline),
> and remotely there's no success as the isoc transfers simply don't happen.
>
> Klaus
>
>> Thanks in advance,
>> Ira
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