RxUsbDeviceGetStatus: Difference between revisions
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==Related Functions== | ==Related Functions== | ||
* [[RxUsbDeviceGetConfiguration]] | |||
* [[RxUsbDeviceSetConfiguration]] | |||
* [[RxUsbDeviceClearFeature]] | |||
* [[RxUsbDeviceSetFeature]] | |||
* [[RxUsbCtrlMessage]] | |||
* [[RxUsbOpen]] | |||
[[Category:USBCalls]] | [[Category:USBCalls]] | ||
Latest revision as of 19:23, 12 February 2017
Description
Executes the Standard Device Request that obtains the status of a USB device.
Syntax
rc = RxUsbDeviceGetStatus(Handle,Status)
Parameters
- Handle
- the Device Handle received from the previous RxUsbOpen.
- Status
- the name of the variable to receive the Device Status.
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
Example Code
/* add RxUsbDeviceGetStatus */
rc = RxFuncAdd('RxUsbDeviceGetStatus','usbcalls','RxUsbDeviceGetStatus')
say '+RxUsbDeviceGetStatus(),RC=0x'd2x(rc)
/* invoke RxUsbDeviceGetStatus */
drop Status /* receives device status */
rc = RxUsbDeviceGetStatus(Handle,Status)
say '*RxUsbDeviceGetStatus(),RC=0x'd2x(rc)
/* drop RxUsbDeviceGetStatus */
rc = RxFuncDrop('RxUsbDeviceGetStatus')
say '-RxUsbDeviceGetStatus(),RC=0x'd2x(rc)