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This function registers an interrupt service callback function for the specified socket and function pair.
STATUS CardRequestIRQ( CARD_CLIENT_HANDLE hCardClient CARD_SOCKET_HANDLE hSocket CARD_ISR ISRFunction UINT32 uISRContextData );
Parameters
- hCardClient
- Client handle obtained from the CardRegisterClientfunction.
- hSocket
- Handle to a socket and function pair.
- ISRFunction
- Pointer to the interrupt callback function for the specified socket and function pair. This parameter is required.
- uISRContextData
- Specifies context data to be passed to the interrupt callback
function.
Return Values
CERR_SUCCESS indicates success. One of the following values indicates failure:
- CERR_BAD_ARGS
- Indicates that the pointer specified for ISRFunctionis invalid.
- CERR_BAD_HANDLE
- Indicates that the driver handle specified for hCardClientis invalid.
- CERR_BAD_SOCKET
- Indicates that the socket identifier specified for hSocketis invalid or that no PC Card is inserted.
- CERR_IN_USE
- Indicates that another driver owns the configuration or interrupt.
- CERR_OUT_OF_RESOURCE
- Indicates that insufficient memory is available to record the
request.
Remarks
This function sets up the interrupt callback exclusively for the requesting driver. The device determines the interrupt source, determines which function on a socket interrupted, and calls the appropriate interrupt callback function.
Only I/O drivers can request interrupt notifications. Interrupts are not signaled until the PC Card is configured for the I/O interface by a call to the CardRequestConfigurationfunction.
Driver name
PCMCIA
Requirements
Runs on Versions Defined in Include Link to Windows CE OS 1.0 and later Note This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.
See Also
CardReleaseConfiguration, CardReleaseIRQ
Last updated on Tuesday, July 13, 2004