Re: [Libusb-devel] undefined symbol: usbi_parse_device_descriptor

[Tim R. <ti...@pr...>]

villerose wrote:
> I found another example which names "print_tree" in libusb/examples, here is
> the descriptor of the device :
>   + device #8 
> bcdUSB:                 0112h
> bDeviceClass:           0
> bDeviceSubClass:        2
> bDeviceProtocol:        0
> bMaxPacketSize0:        0
> idVendor:               4000h
> idProduct:              0547h
> bcdDevice:              d100h
> iManufacturer:          0
> iProduct:               0
> iSerialNumber:          1
> ...
> so if you look at the idvendor and idProduct, they arent the same ?! 
> That's why in my previous example, it can not find out the device coz in the
> code I used : libusb_match_by_vendor(&match, 0x0547,0xD100) , then if I
> replaced the idVendor as 0x4000 et idProd as 0x0547, it worked !!!! I wonder
> if there's something "unusual" in libusb ?? 
>   

This suggests that you made a mistake when you did the workaround for
the usbi_parse_device_descriptor problem.  After all, what you're
looking at above IS the device descriptor.  There's some kind of
unpacking issue

-- 
Tim Roberts, ti...@pr...
Providenza & Boekelheide, Inc.