RxUsbIrqRead

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

Syntax
rc = RxUsbIrqRead(Handle,Endpoint,AltSetting,NumBytes,Data,Timeout)

Parameters

 * Handle : the Device Handle received from the previous RxUsbOpen.


 * Endpoint : the Endpoint Number with the Direction Bit set to one.


 * AltSetting : the Alternate Setting of the interface having this endpoint.


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


 * Data : the name of the variable to receive the data bytes transferred.


 * Timeout : the timeout to wait for completion in milliseconds.

Return Code
0x0000 - NO_ERROR

Errors
0x0006 - ERROR_INVALID_HANDLE 0x0008 - ERROR_NOT_ENOUGH_MEMORY 0x0057 - ERROR_INVALID_PARAMETER 0x005F - ERROR_INTERRUPT 0x0122 - ERROR_TOO_MANY_HANDLES 0x0280 - ERROR_TIMEOUT 0x1B58 - USB_NOT_INIT 0x1B5B - USB_ERROR_INVALID_ENDPOINT 0x4000 - USB_IORB_REQUEST 0x80XX - USB_IORB_FAILED 0xFF0D - ERROR_INVALID_DATA 0xFF13 - ERROR_I24_INVALID_PARAMETER 0xFF13 - USB_IDC_PARMERR 0xFF18 - USB_IDC_ADDRINV 0xFF37 - ERROR_DEV_NOT_EXIST 0xFF5D - EROR_NO_ITEMS 0xFFA7 - ERROR_LOCK_FAILED

Example Code
/* add RxUsbIrqRead */ rc = RxFuncAdd('RxUsbIrqRead','usbcalls','RxUsbIrqRead') say '+RxUsbIrqRead,RC=0x'd2x(rc)

/* invoke RxUsbIrqRead */ drop Data /* receives string of data bytes read */ Endpoint=128+1; AltSetting=0; NumBytes=4096; Timeout=8000 rc = RxUsbIrqRead(Handle,Endpoint,AltSetting,NumBytes,Data,Timeout) say '*RxUsbIrqRead,RC=0x'd2x(rc)

/* drop RxUsbIrqRead */ rc = RxFuncDrop('RxUsbIrqRead') say '-RxUsbIrqRead,RC=0x'd2x(rc)

Related Functions

 * RxUsbIrqWrite
 * RxUsbDataTransfer
 * RxUsbOpen