RxUsbInterfaceGetStatus: Difference between revisions
Created page with "==Description== Executes the Standard Device Request that obtains the status of an interface. ==Syntax== <pre> rc = RxUsbInterfaceGetStatus(Handle,Interface,Status) </pre>..." |
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Revision as of 04:18, 11 January 2017
Description
Executes the Standard Device Request that obtains the status of an interface.
Syntax
rc = RxUsbInterfaceGetStatus(Handle,Interface,Status)
Parameters
- Handle
- the Device Handle received from the previous RxUsbOpen.
- Interface
- the specific Interface Number appropriate for the USB device.
- Status
- the name of the variable to receive the Interface Status.
Return Code
Errors
Remarks
Example Code
/* add RxUsbInterfaceGetStatus */
rc = RxFuncAdd('RxUsbInterfaceGetStatus','usbcalls','RxUsbInterfaceGetStatus')
say '+RxUsbInterfaceGetStatus(),RC=0x'd2x(rc)
/* invoke RxUsbInterfaceGetStatus */
Interface=1 /* second interface number */
drop Status /* receives interface status */
rc = RxUsbInterfaceGetStatus(Handle,Interface,Status)
say '*RxUsbInterfaceGetStatus(),RC=0x'd2x(rc)
/* drop RxUsbInterfaceGetStatus */
rc = RxFuncDrop('RxUsbInterfaceGetStatus')
say '-RxUsbInterfaceGetStatus(),RC=0x'd2x(rc)