OS2 World Community Forum

OS/2, eCS & ArcaOS - Technical => Programming => Topic started by: Martin Iturbide on December 19, 2022, 06:08:11 pm

Title: Samples for VDD Drivers
Post by: Martin Iturbide on December 19, 2022, 06:08:11 pm
Hi

I'm trying to assist someone to learn/create a VDD driver, and he told me that there are no VDD samples on the driver DDK (2004 iso).

Can somebody help me to confirm that or had some other newer VDD samples that used to be on IBMs website?

Regards
Title: Re: Samples for VDD Drivers
Post by: Lars on December 19, 2022, 06:18:53 pm
Don't know, but for fun, I had written a very limited VDD sample driver that does not much more than being properly built and loading (it gives some idea of how to properly thunk stack based addresses, which is a special challenge with VDDs). I can provide that.
Title: Re: Samples for VDD Drivers
Post by: Martin Iturbide on December 19, 2022, 09:20:04 pm
Yes Lars, I have interest.

For the moment I had seached the OS2World Github and I think I found some samples:
- https://github.com/OS2World/DEV-SAMPLES-DRV-DEMODD
- https://github.com/OS2World/DRV-VDDs-GoSierra
- https://github.com/OS2World/DEV-SAMPLES-DRV-DRVLIB/tree/master/VDD

Regards
Title: Re: Samples for VDD Drivers
Post by: ivan on December 19, 2022, 10:47:03 pm
Obviously you are not using VDD in the sense of it being the positive voltage in the power supply, so what do you mean by it?
Title: Re: Samples for VDD Drivers
Post by: Tom on December 19, 2022, 11:47:20 pm
Obviously you are not using VDD in the sense of it being the positive voltage in the power supply, so what do you mean by it?

Virtual Device Driver, as opposed to PDD or Physical Device Driver
Title: Re: Samples for VDD Drivers
Post by: Andy Willis on December 20, 2022, 02:39:03 am
Martin Kiewitz has his VDD drivers on sourceforge, no license is specifically specified for these:
http://svn.code.sf.net/p/air-boot/code/special/