Find the first available matching USB device.

int32_t UsbFindFirstDevice( 
    struct usbDeviceInfo * udi, 
    struct usbDeviceId * idtable, 
    struct usbDeviceId ** id ); 

Parameters

udi

A pointer to a usbDeviceInfo structure. This structure must first be initialized to zeros.

idtable

A pointer to usbDeviceId table. This table describes possible matches.

id

A pointer to a matching usbDeviceId table entry. The returned value is only valid if the function returns USB_ERR_NORMAL_COMPLETION .

Return Values

USB_ERR_NORMAL_COMPLETION	Success. A device descriptor was returned.
USB_ERR_NO_STACK	The USB stack is not ready.
USB_ERR_FAULT	A fault occurred during the call.
USB_ERR_NO_DEVICE	There are no devices.

Requirements