RxUsbBulkRead
Description
Executes synchronous device-to-host Bulk Transfer with a specific endpoint.
Syntax
rc = RxUsbBulkRead(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
Errors
Remarks
Example Code
/* add RxUsbBulkRead */
rc = RxFuncAdd('RxUsbBulkRead','usbcalls','RxUsbBulkRead')
say '+RxUsbBulkRead(),RC=0x'd2x(rc)
/* invoke RxUsbBulkRead */
drop Data /* receives string of data bytes read */
Endpoint=128+1; AltSetting=0; NumBytes=4096; Timeout=8000
rc = RxUsbBulkRead(Handle,Endpoint,AltSetting,NumBytes,Data,Timeout)
say '*RxUsbBulkRead(),RC=0x'd2x(rc)
/* drop RxUsbBulkRead */
rc = RxFuncDrop('RxUsbBulkRead')
say '-RxUsbBulkRead(),RC=0x'd2x(rc)