INtime SDK Help
UsbGetAltInterface
INtime SDK v7 > About INtime > Networking and I/O > USB > USB calls > UsbGetAltInterface

Determine the current alternate interface.

int32_t UsbGetAltInterface( 
int32_t udev,
uint8_t *altnum
);

Parameters

udev
Device handle from UsbOpenDevice.
altnum
Pointer to a variable to receive the current alternate interface ID.  

Return Values

USB_ERR_NORMAL_COMPLETION Success.
USB_ERR_NO_STACK The USB stack is not ready.
USB_ERR_MEMORY Memory could not be allocated for the operation.
USB_ERR_TIMEOUT The device did not respond.

Requirements

Versions Defined in Include Link to
INtime 5.0 intime/rt/include/usbif3h usbif3h usbif3lib