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 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 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)

Related Functions

 * RxUsbDeviceGetConfiguration
 * RxUsbDeviceSetConfiguration
 * RxUsbDeviceGetStatus
 * RxUsbDeviceSetFeature
 * RxUsbCtrlMessage
 * RxUsbOpen