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RxUsbDeviceClearFeature: Difference between revisions

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Created page with "==Description== Executes the Standard Device Request that clears or disables a USB device feature. ==Syntax== <pre> rc = RxUsbDeviceClearFeature(Handle,Feature) </pre> ==P..."
 
W.m.brul (talk | contribs)
added return codes and corrected example code
Line 13: Line 13:


==Return Code==
==Return Code==
 
<pre>
0x0000 - NO_ERROR
</pre>
===Errors===
===Errors===
 
<pre>
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
</pre>
==Remarks==
==Remarks==


==Example Code==
==Example Code==
<pre>
<pre>
/* add RxUsbEndpointClearFeature */
/* add RxUsbDeviceClearFeature */
rc = RxFuncAdd('RxUsbEndpointClearFeature','usbcalls','RxUsbEndpointClearFeature')
rc = RxFuncAdd('RxUsbDeviceClearFeature','usbcalls','RxUsbDeviceClearFeature')
say '+RxUsbEndpointClearFeature(),RC=0x'd2x(rc)
say '+RxUsbDeviceClearFeature(),RC=0x'd2x(rc)


/* invoke RxUsbEndpointClearFeature */
/* invoke RxUsbDeviceClearFeature */
Endpoint=0 /* default control endpoint */
Endpoint=128+1 /* isochronous endpoint */
Feature=0 /* feature selector to clear */
Feature=0 /* feature selector to clear */
rc = RxUsbEndpointClearFeature(Handle,Endpoint,Feature)
rc = RxUsbDeviceClearFeature(Handle,Feature)
say '*RxUsbEndpointClearFeature(),RC=0x'd2x(rc)
say '*RxUsbDeviceClearFeature(),RC=0x'd2x(rc)
 
/* drop RxUsbEndpointClearFeature */
rc = RxFuncDrop('RxUsbEndpointClearFeature')
say '-RxUsbEndpointClearFeature(),RC=0x'd2x(rc)


/* drop RxUsbDeviceClearFeature */
rc = RxFuncDrop('RxUsbDeviceClearFeature')
say '-RxUsbDeviceClearFeature(),RC=0x'd2x(rc)
</pre>
</pre>



Revision as of 17:13, 22 January 2017

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

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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