3.2.4.5 USB_HOST_BusIsEnabled Function
C
USB_HOST_RESULT USB_HOST_BusIsEnabled(
USB_HOST_BUS bus
);
Summary
The function returns the enable status of the bus. It can be called after the USB_HOST_BusEnable() function is called, to check if the bus has been enabled yet. If the bus parameter is set to USB_HOST_BUS_ALL, then the function will check the enable status of all the buses and will return true only if all the buses are enabled.
Description
Description of the function.
Precondition
The USB_HOST_Initialize() function should have been called before calling this function.
Parameters
| Parameters | Description |
| bus | The bus that needs to checked for enable status. If this is set to USB_HOST_BUS_ALL, all buses will be checked. |
Returns
USB_HOST_RESULT_TRUE if the bus is enabled.
USB_HOST_RESULT_FALSE if the bus is not enabled.
USB_HOST_RESULT_BUS_UNKNOWN if the specified bus is invalid (it does not exist in the system).
USB_HOST_RESULT_FAILURE if an unknown failure occurred.
Remarks
None.