RxUsbDeviceSetDescriptor

Description
Warning: Do NOT use this function unless you know your USB device supports it.

Executes the Standard Device Request that updates the Device Descriptor.

Syntax
rc = RxUsbDeviceSetDescriptor(Handle,Length,Descriptor)

Parameters

 * Handle : the Device Handle received from the previous RxUsbOpen.


 * Length : the desired number of bytes or 0 for the whole Device Descriptor.


 * Descriptor : the Device Descriptor appropriate for the device.

Return Code
0x0000 - NO_ERROR

Errors
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
Warning: Do NOT use this function unless you know your USB device supports it.

Example Code
/* add RxUsbDeviceSetDescriptor */ rc = RxFuncAdd('RxUsbDeviceSetDescriptor','usbcalls','RxUsbDeviceSetDescriptor') say '+RxUsbDeviceSetDescriptor,RC=0x'd2x(rc)

/* invoke RxUsbDeviceSetDescriptor */ Length=18 /* to replace whole descriptor */ Descriptor=x2c(1201100100000040450C2D60010100010001) rc = RxUsbDeviceSetDescriptor(Handle,Length,Descriptor) say '*RxUsbDeviceSetDescriptor,RC=0x'd2x(rc)

/* drop RxUsbDeviceSetDescriptor */ rc = RxFuncDrop('RxUsbDeviceSetDescriptor') say '-RxUsbDeviceSetDescriptor,RC=0x'd2x(rc)

Related Functions

 * RxUsbDeviceGetDescriptor
 * RxUsbCtrlMessage
 * RxUsbOpen