USBIsDeviceSuspended Macro

Microchip USB Device Library

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USB Device Library Help

#define USBIsDeviceSuspended USBSuspendControl

Description

This function indicates if this device is currently suspended. When a device is suspended it will not be able to transfer data over the bus. This function can be used by the application to skip over section of code that do not need to exectute if the device is unable to send data over the bus.

Typical usage:

Copy Code

   void main(void)
   {
       USBDeviceInit()
       while(1)
       {
           USBDeviceTasks();
           if((USBGetDeviceState() < CONFIGURED_STATE) ||
              (USBIsDeviceSuspended() == TRUE))
           {
               //Either the device is not configured or we are suspended
               //  so we don't want to do execute any application code
               continue;   //go back to the top of the while loop
           }
           else
           {
               //Otherwise we are free to run user application code.
               UserApplication();
           }
       }
   }

Preconditions

None

Return Values

Return Values	Description
TRUE	this device is suspended.
FALSE	this device is not suspended.

Remarks

None

MCHPFSUSB Device Library > Stack > Public API Members > Functions and Macros > USBIsDeviceSuspended Macro

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