Re: [Libusb-win32-devel] get usb device status

[Stephan M. <ste...@we...>]

Use usb_control_msg() to send a get_status request
(see USB spec section 9.4.5).

Alternatively, you can use the configuration descriptor's
bmAttributes value which also contains that information.


> Hallo,
> 
> I want to know, if my device is bus or selfpowered.
> How do I a "get device status request" with libusb functions?
> http://libusb.sourceforge.net/doc/ref.control.html
> shows only get_descriptor and get_string functions.
> But this doesn't seems to me, that it is possible to read the device status
> with this functions.
> 
> 
> Greetings
> 	Juergen
> 
> 
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