RxUsbDeviceGetStatus: Difference between revisions
Created page with "==Description== Executes the Standard Device Request that obtains the status of a USB device. ==Syntax== <pre> rc = RxUsbDeviceGetStatus(Handle,Status) </pre> ==Parameters=..." |
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; Status : the name of the variable to receive the Device Status. | ; Status : the name of the variable to receive the Device Status. | ||
==Return Code== | ==Return Code== | ||
<pre> | |||
0x0000 - NO_ERROR | |||
</pre> | |||
===Errors=== | ===Errors=== | ||
<pre> | |||
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 | |||
</pre> | |||
==Remarks== | ==Remarks== | ||
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rc = RxFuncDrop('RxUsbDeviceGetStatus') | rc = RxFuncDrop('RxUsbDeviceGetStatus') | ||
say '-RxUsbDeviceGetStatus(),RC=0x'd2x(rc) | say '-RxUsbDeviceGetStatus(),RC=0x'd2x(rc) | ||
</pre> | </pre> | ||
Revision as of 17:05, 22 January 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
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)