Re: [Libusb-win32-devel] No devices found

[<ww...@se...>]

Thank You for response. No, I didn't know that I need it :( I think, th=
at it is too complex for me - to install a special driver - for my simp=
le application. I only want to detect all connected USB devices... (Do =
I need a special drivers for all devices??? )... Is there any other way=
 to reach this - detecting connected USB devices under Windows? Maybe w=
ithout libusb-win32? Does anyone know? 
 
Wolek.

> ------------ P=F9vodn=ED zpr=E1va ------------
> Od: Stephan Meyer <ste...@we...>
> P=F8edm=ECt: Re: [Libusb-win32-devel] No devices found
> Datum: 22.1.2007 16:48:10
> ----------------------------------------
> 
> Did you install the driver? Does the test program testlibusb-win.exe =

> find any devices?
> 
> Stephan
> 
> 
> > Hi all, 
> >  
> > I have a small program to show list of connected usb devices. It wo=
rks fine
> under Linux, but when I port it into libusb-win32, it doesn't - it do=
esn't
> detect any device! And I really don't know why :(  
> >  
> > Attached example - testlibusb.c doesn't detect any device too. 
> >  
> > I'm using WinXP, libusb-win32-snapshot-20060827. 
> >  
> > Here is my code: 
> >  
> > #include <stdio.h> 
> > #include "usb.h" 
> >  
> > int print_device(struct usb_device *dev) 
> > { 
> > usb_dev_handle *udev; 
> > int ret, i; 
> >  
> > printf("dev:%i\n", dev); 
> > udev =3D usb_open(dev); 
> > printf("udev:%i", udev); 
> >  
> > printf("#%x - %x\n", dev->descriptor.idVendor, dev->descriptor.idPr=
oduct); 
> >  
> > for (i =3D 0; i < dev->num_children; i++) 
> > print_device(dev->children[i]); 
> >  
> > return 0; 
> > } 
> >  
> > int main(int argc, char *argv[]) 
> > { 
> > struct usb_bus *bus; 
> >  
> > usb_init(); 
> > usb_set_debug(0); 
> >  
> > usb_find_busses(); 
> > usb_find_devices(); 
> >  
> > for (bus =3D usb_get_busses(); bus; bus =3D bus->next) { 
> > struct usb_device *dev; 
> > printf("bus:%i\n", bus); 
> > printf("bus->devices:%i\n", bus->devices); 
> > for (dev =3D bus->devices; dev; dev =3D dev->next) { 
> > print_device(dev); 
> > } 
> > } 
> >  
> > return 0; 
> > } 
> > 
> > output:
> > bus:4846846
> > bus->devices:0
> >  
> > Can anyone help me, please... ? I've installed libusb0.dll into pro=
gram's
> directory and then into system32, but it still doesn't work. Thanx in=
 advance. 
> > 
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