I grep out two results...
$ rpm -qa | grep libusb

libusb1-1.0.8-1.fc14.i686
libusb-0.1.12-23.fc14.i686

I don't know which one is my libusb version.

On Sat, Feb 18, 2012 at 12:03 AM, Wander Lairson Costa <
wander.lair...@gmail.com> wrote:

> 2012/2/17 Yunong Pang <029...@gmail.com>:
> > Bus 002 Device 018: ID 0547:1002 Anchor Chips, Inc. Python2 WDM Encoder
> > Device Descriptor:
> >   bLength                18
> >   bDescriptorType         1
> >   bcdUSB               2.00
> >   bDeviceClass            0 (Defined at Interface level)
> >   bDeviceSubClass         0
> >   bDeviceProtocol         0
> >   bMaxPacketSize0        64
> >   idVendor           0x0547 Anchor Chips, Inc.
> >   idProduct          0x1002 Python2 WDM Encoder
> >   bcdDevice            0.00
> >   iManufacturer           1 FCTECH
> >   iProduct                2 SLAVEFIFO
> >   iSerial                 0
> >   bNumConfigurations      1
> >   Configuration Descriptor:
> >     bLength                 9
> >     bDescriptorType         2
> >     wTotalLength           32
> >     bNumInterfaces          1
> >     bConfigurationValue     1
> >     iConfiguration          0
> >     bmAttributes         0xa0
> >       (Bus Powered)
> >       Remote Wakeup
> >     MaxPower              500mA
> >     Interface Descriptor:
> >       bLength                 9
> >       bDescriptorType         4
> >       bInterfaceNumber        0
> >       bAlternateSetting       0
> >       bNumEndpoints           2
> >       bInterfaceClass       255 Vendor Specific Class
> >       bInterfaceSubClass      0
> >       bInterfaceProtocol      0
> >       iInterface              0
> >       Endpoint Descriptor:
> >         bLength                 7
> >         bDescriptorType         5
> >         bEndpointAddress     0x02  EP 2 OUT
> >         bmAttributes            2
> >           Transfer Type            Bulk
> >           Synch Type               None
> >           Usage Type               Data
> >         wMaxPacketSize     0x0200  1x 512 bytes
> >         bInterval               0
> >       Endpoint Descriptor:
> >         bLength                 7
> >         bDescriptorType         5
> >         bEndpointAddress     0x86  EP 6 IN
> >         bmAttributes            2
> >           Transfer Type            Bulk
> >           Synch Type               None
> >           Usage Type               Data
> >         wMaxPacketSize     0x0200  1x 512 bytes
> >         bInterval               0
> > Device Qualifier (for other device speed):
> >   bLength                10
> >   bDescriptorType         6
> >   bcdUSB               2.00
> >   bDeviceClass            0 (Defined at Interface level)
> >   bDeviceSubClass         0
> >   bDeviceProtocol         0
> >   bMaxPacketSize0        64
> >   bNumConfigurations      1
> > Device Status:     0x0002
> >   (Bus Powered)
> >   Remote Wakeup Enabled
> >
>
> I don't think this is related to PyUSB, but with libusb. What libusb
> version are you using?
>
> --
> Best Regards,
> Wander Lairson Costa
>
>
> ------------------------------------------------------------------------------
> Virtualization & Cloud Management Using Capacity Planning
> Cloud computing makes use of virtualization - but cloud computing
> also focuses on allowing computing to be delivered as a service.
> http://www.accelacomm.com/jaw/sfnl/114/51521223/
> _______________________________________________
> pyusb-users mailing list
> pyusb-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/pyusb-users
>
------------------------------------------------------------------------------
Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing 
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/
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