UsbIrqWrite: Difference between revisions

Revision as of 18:25, 25 January 2017

Description

Executes synchronous host-to-device Interrupt Transfer with a specific endpoint.

Syntax

ulrc = UsbIrqWrite(Handle,ucEndpoint,ucAltSetting,ulNumBytes,pucData,ulTimeout)

Parameters

Handle: the Device Handle received from the previous UsbOpen.

ucEndpoint: the Endpoint Number with the Direction Bit set to zero.

ucAltSetting: the Alternate Setting of the interface having this endpoint.

ulNumBytes: the number of bytes to be transferred or 0 for no data transfer.

pucData: the address of the buffer with the data bytes to be transferred.

ulTimeout: the timeout to wait for completion in milliseconds.

Return Code

0000 - NO_ERROR

Errors

0006 - ERROR_INVALID_HANDLE
0008 - ERROR_NOT_ENOUGH_MEMORY
0057 - ERROR_INVALID_PARAMETER
005F - ERROR_INTERRUPT
0122 - ERROR_TOO_MANY_HANDLES
0280 - ERROR_TIMEOUT
1B58 - USB_NOT_INIT
1B5B - USB_ERROR_INVALID_ENDPOINT
1B5C - USB_ERROR_LESSTRANSFERED
4000 - USB_IORB_REQUEST
80XX - USB_IORB_FAILED

Remarks

Example Code

//Code Snippet - UsbIrqWrite
{
  APIRET ulrc;
  PUCHAR pucData;
  UCHAR ucAltSetting = 0;
  UCHAR ucData[4096];
  UCHAR ucEndpoint = 0x02;
  ULONG ulNumBytes = sizeof(ucData);
  ULONG ulTimeout = 8000;

  pucData = &ucData[0];
  ulrc = UsbIrqWrite(Handle,ucEndpoint,ucAltSetting,ulNumBytes,pucData,ulTimeout);
  printf("\nUsbIrqWrite - ulrc: 0x%04X (%hu)",ulrc,ulrc);
  if (!ulrc) //success
  {
    int i; printf(" - interrupt data:\n");
    for (i=0;i<ulNumBytes;i++) printf("%02X",ucData[i]);
  }
}

Related Functions

@@ Line 4: / Line 4: @@
 ==Syntax==
 <pre>
-ulrc=UsbIrqWrite(Handle,Endpoint,AltInterface,ulNumBytes,*pucData,ulTimeout)
+ulrc = UsbIrqWrite(Handle,ucEndpoint,ucAltSetting,ulNumBytes,pucData,ulTimeout)
 </pre>
 ==Parameters==
-; Handle :
+; Handle : the Device Handle received from the previous UsbOpen.
-; Endpoint :
+; ucEndpoint : the Endpoint Number with the Direction Bit set to zero.
-; AltInterface :
+; ucAltSetting : the Alternate Setting of the interface having this endpoint.
-; ulNumBytes :
+; ulNumBytes : the number of bytes to be transferred or 0 for no data transfer.
-; *pucData :
+; pucData : the address of the buffer with the data bytes to be transferred.
-; ulTimeout :
+; ulTimeout : the timeout to wait for completion in milliseconds.
 ==Return Code==
+<pre>
+- NO_ERROR
+</pre>
 ===Errors===
+<pre>
-  [0000] - NO_ERROR
+- ERROR_INVALID_HANDLE
-  [0006] - ERROR_INVALID_HANDLE
+- ERROR_NOT_ENOUGH_MEMORY
-  [0008] - ERROR_NOT_ENOUGH_MEMORY
+- ERROR_INVALID_PARAMETER
-  [0057] - ERROR_INVALID_PARAMETER
+F - ERROR_INTERRUPT
-  [005F] - ERROR_INTERRUPT (95)
+- ERROR_TOO_MANY_HANDLES
-  [0122] - ERROR_TOO_MANY_HANDLES (290)
+- ERROR_TIMEOUT
-  [0280] - ERROR_TIMEOUT (640)
+B58 - USB_NOT_INIT
-  [1B58] - USB_NOT_INIT (7000)
+B5B - USB_ERROR_INVALID_ENDPOINT
-  [1B5B] - USB_ERROR_INVALID_ENDPOINT (7003)
+B5C - USB_ERROR_LESSTRANSFERED
-  [1B5C] - USB_ERROR_LESSTRANSFERED (7004)
+- USB_IORB_REQUEST
-  [4000] - USB_IORB_REQUEST
+XX - USB_IORB_FAILED
-  [80XX] - USB_IORB_FAILED
+</pre>
 ==Remarks==
 ==Example Code==
 <pre>
+//Code Snippet - UsbIrqWrite
+{
+  APIRET ulrc;
+  PUCHAR pucData;
+  UCHAR ucAltSetting = 0;
+  UCHAR ucData[4096];
+  UCHAR ucEndpoint = 0x02;
+  ULONG ulNumBytes = sizeof(ucData);
+  ULONG ulTimeout = 8000;
+  pucData = &ucData[0];
+  ulrc = UsbIrqWrite(Handle,ucEndpoint,ucAltSetting,ulNumBytes,pucData,ulTimeout);
+  printf("\nUsbIrqWrite - ulrc: 0x%04X (%hu)",ulrc,ulrc);
+  if (!ulrc) //success
+  {
+    int i; printf(" - interrupt data:\n");
+    for (i=0;i<ulNumBytes;i++) printf("%02X",ucData[i]);
+  }
+}
 </pre>