# Documentation additions?

**URL:** <https://forums.freertos.org/t/documentation-additions/2944>\
**Category:** Kernel\
**Created:** [March 6, 2008, 5:07pm UTC](https://forums.freertos.org/t/documentation-additions/2944 "2008-03-06T17:07:22Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![system](https://d2v6vdsk2p900z.cloudfront.net/original/1X/7fc8fdb729c645aab5b20282bbe34e57cb407be6.jpeg) [@system](https://forums.freertos.org/u/system)\
**Post date:** [March 6, 2008, 5:07pm UTC](https://forums.freertos.org/t/documentation-additions/2944/1 "2008-03-06T17:07:22Z")

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**[jcwren](https://sourceforge.net/u/jcwren/)** wrote on [Thursday, March 06, 2008](https://sourceforge.net/p/freertos/discussion/382005/thread/83954b18/#37ac):

Would it be possible to have the various port\* functions, such as portYIELD\_FROM\_ISR(), added to the online docs?

If they’re there, I didn’t see them under the API section.

Thanks!  
–jc

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**Author:** ![rtel](https://d3iykfbgfh8zhg.cloudfront.net/user_avatar/forums.freertos.org/rtel/32/31_2.png) [@rtel](https://forums.freertos.org/u/rtel)\
**Post date:** [March 6, 2008, 5:22pm UTC](https://forums.freertos.org/t/documentation-additions/2944/2 "2008-03-06T17:22:59Z")

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**[rtel](https://sourceforge.net/u/rtel/)** wrote on [Thursday, March 06, 2008](https://sourceforge.net/p/freertos/discussion/382005/thread/83954b18/#37ac/0179):

As its in the portable layer - portYIELD\_FROM\_ISR() is different for each architecture, hence its not in the API documentation.&nbsp; Instead, each port documentation page (under "RTOS ports", the page that describes how to setup and run the demo) should give an example of how to use the macro for each given port.

Regards.

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**Author:** ![system](https://d2v6vdsk2p900z.cloudfront.net/original/1X/7fc8fdb729c645aab5b20282bbe34e57cb407be6.jpeg) [@system](https://forums.freertos.org/u/system)\
**Post date:** [March 6, 2008, 6:20pm UTC](https://forums.freertos.org/t/documentation-additions/2944/3 "2008-03-06T18:20:00Z")

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**[jcwren](https://sourceforge.net/u/jcwren/)** wrote on [Thursday, March 06, 2008](https://sourceforge.net/p/freertos/discussion/382005/thread/83954b18/#37ac/0179/8be5):

Yeah, I kinda wondered about that.&nbsp; Not having investigated other than the LPC21xx and Stellaris ports, I wasn’t really sure.

–jc