RxUsbQueryDeviceReport

Obtains the Compound Descriptor of a specific USB device.

Syntax
For access by Device Handle use: rc = RxUsbQueryDeviceReport(Handle,Report) For access by Device Number use: rc = RxUsbQueryDeviceReport(Number,Report)

Parameters

 * Handle : the Device Handle received from the previous RxUsbOpen.
 * Number : the Device Number from 1 up to the Total Number from RxUsbQueryNumberDevices.
 * Report : receives the Compound Descriptor as hexadecimal string.

Return Code
0x0000 - NO_ERROR

Errors
0x0057 - ERROR_INVALID_PARAMETER 0x1B58 - USB_NOT_INIT 0xFF13 - ERROR_I24_INVALID_PARAMETER 0xFF1F - ERROR_GEN_FAILURE 0xFF37 - ERROR_DEV_NOT_EXIST 0xFF57 - ERROR_INVALID_PARAMETER 0xFF6F - ERROR_BUFFER_OVERFLOW 0xFFEA - ERROR_MORE_DATA

Remarks
The Compound Descriptor is the concatenation of Device Descriptor and Configuration Descriptor.

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

/* invoke RxUsbQueryDeviceReport */ drop Report /* receives device report */ rc = RxUsbQueryDeviceReport(Handle,Report) say '*RxUsbQueryDeviceReport,RC=0x'd2x(rc)

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

Related Functions

 * RxUsbQueryDeviceInfo
 * RxUsbQueryNumberDevices
 * RxUsbOpen