RxUsbDeviceClearFeature
Description
Executes the Standard Device Request that clears or disables a USB device feature.
Syntax
rc = RxUsbDeviceClearFeature(Handle,Feature)
Parameters
- Handle
- the Device Handle received from the previous RxUsbOpen.
- Feature
- the Feature Selector appropriate for the device.
Return Code
0x0000 - NO_ERROR
Errors
0x0000 - NO_ERROR 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 0x4000 - USB_IORB_REQUEST 0x80XX - USB_IORB_FAILED
Remarks
Example Code
/* add RxUsbDeviceClearFeature */
rc = RxFuncAdd('RxUsbDeviceClearFeature','usbcalls','RxUsbDeviceClearFeature')
say '+RxUsbDeviceClearFeature(),RC=0x'd2x(rc)
/* invoke RxUsbDeviceClearFeature */
Feature=0 /* feature selector to clear */
rc = RxUsbDeviceClearFeature(Handle,Feature)
say '*RxUsbDeviceClearFeature(),RC=0x'd2x(rc)
/* drop RxUsbDeviceClearFeature */
rc = RxFuncDrop('RxUsbDeviceClearFeature')
say '-RxUsbDeviceClearFeature(),RC=0x'd2x(rc)