UsbQueryVersion: Difference between revisions

Latest revision as of 17:24, 15 August 2017

Description

Obtains the version numbers of the USB Resource Manager components.

Syntax

ulrc = UsbQueryVersion(pUsbVersion,pulBufLen)

Parameters

pUsbVersion: the address of the buffer to receive the version numbers.

pulBufLen: the address of the variable containing the buffer length.

Return Code

0x0000 - NO_ERROR

Errors

0x0057 - ERROR_INVALID_PARAMETER
0x1B58 - USB_NOT_INIT
0xFF13 - ERROR_I24_INVALID_PARAMETER
0xFF1F - ERROR_GEN_FAILURE
0xFF57 - ERROR_INVALID_PARAMETER

Remarks

Example Code

//Code Snippet - UsbQueryVersion
{
  APIRET ulrc;
  PULONG pulBufLen;
  PUSBVERSION pUsbVersion;
  ULONG ulBufLen = sizeof(USBVERSION);
  USBVERSION UsbVersion;

  pulBufLen = &ulBufLen;
  pUsbVersion = &UsbVersion;
  ulrc = UsbQueryVersion(pUsbVersion,pulBufLen);
  printf("\nUsbQueryVersion - ulrc: 0x%04X (%hu)",ulrc,ulrc);
  if (!ulrc) //success
  {
    printf(" - USBCALLS: %hu.%hu",pUsbVersion->DllMajor,pUsbVersion->DllMinor);
    printf(" - USBRESMG: %hu.%hu",pUsbVersion->UsbMajor,pUsbVersion->UsbMinor);
  }
}

Related Functions

@@ Line 4: / Line 4: @@
 ==Syntax==
 <pre>
-ulrc = UsbQueryVersion(pUsbQueryVersion,pulBufLen)
+ulrc = UsbQueryVersion(pUsbVersion,pulBufLen)
 </pre>
 ==Parameters==
-; pUsbQueryVersion : the address of the buffer to receive the version numbers.
+; pUsbVersion : the address of the buffer to receive the version numbers.
 ; pulBufLen : the address of the variable containing the buffer length.
@@ Line 32: / Line 32: @@
    APIRET ulrc;
    PULONG pulBufLen;
-   PUSBQUERYVERSION pUsbQueryVersion;
+   PUSBVERSION pUsbVersion;
-   ULONG ulBufLen = sizeof(USBQUERYVERSION);
+   ULONG ulBufLen = sizeof(USBVERSION);
-   USBQUERYVERSION QueryVersion;
+   USBVERSION UsbVersion;
    pulBufLen = &ulBufLen;
-   pUsbQueryVersion = &QueryVersion;
+   pUsbVersion = &UsbVersion;
-   ulrc = UsbQueryVersion(pUsbQueryVersion,pulBufLen);
+   ulrc = UsbQueryVersion(pUsbVersion,pulBufLen);
    printf("\nUsbQueryVersion - ulrc: 0x%04X (%hu)",ulrc,ulrc);
    if (!ulrc) //success
    {
-     printf(" - USBCALLS: %hu.%hu",pUsbQueryVersion->DllMajor,pUsbQueryVersion->DllMinor);
+     printf(" - USBCALLS: %hu.%hu",pUsbVersion->DllMajor,pUsbVersion->DllMinor);
-     printf(" - USBRESMG: %hu.%hu",pUsbQueryVersion->UsbMajor,pUsbQueryVersion->UsbMinor);
+     printf(" - USBRESMG: %hu.%hu",pUsbVersion->UsbMajor,pUsbVersion->UsbMinor);
    }
 }