Difference between revisions of "UsbIsDeviceActive"
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| − | <tt>int UsbIsDeviceActive()</tt> | + | <tt>int UsbIsDeviceActive(UAC_HANDLE devHandle)</tt> |
'''Return Value''' | '''Return Value''' | ||
| − | Returns | + | Returns non-zero if the USB device is open, non-zero if the driver has been closed or USB communication has been lost. |
| Line 15: | Line 15: | ||
'''Remarks''' | '''Remarks''' | ||
| − | + | Use this function to test if the USB device is open and communicating. | |
Latest revision as of 11:58, 19 June 2014
int UsbIsDeviceActive(UAC_HANDLE devHandle)
Return Value
Returns non-zero if the USB device is open, non-zero if the driver has been closed or USB communication has been lost.
Parameters
devHandle
- The device handle of an open device. Use the value returned by UsbI2cOpen.
Remarks
Use this function to test if the USB device is open and communicating.
