RxUsbDeviceClearFeature

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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

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)

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