Get the status of an endpoint.

int32_t UsbGetEndpointStatus( 
    int32_t udev, 
    uint8_t ep, 
    uint16_t *epsts 
); 

Parameters

udev

Device handle from UsbOpenDevice.

ep

Value describing the endpoint number, and transfer direction. The endpoint value is the bEndpointAddress field from the usbEndpointDescriptor structure.

epsts

Pointer to a variable which received the endpoint status value. A value of zero indicates a good status. Other values indicate certain error statuses:
UES_STALL  endpoint is stalled

Return Values

USB_ERR_NORMAL_COMPLETION	Success. The operation was completed.
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