If I write a KMDF filter driver for laptop battery , will all PWA APPs that retrieve battery information be affected

Question

Background:

our PWA APP (JS APP) registers power change event . But for our testers , we have to manually discharge & recharge the battery to test those features , it's wasting our time.

Assumption:

If we could write a KMDF driver for battery , when there is a change (percentage of power) is feedback , our driver returns back fake data to the APP , our test could be much faster . For example , when OS reports 98% percentage of power remaining, our KMDF driver returns 18% to the APP.

Question:

Is my assumption available ?

Answer 1

Hello,

Welcome to Microsoft Q&A!

I've talked with the team about this. The power change event that UWP handles is raised by the system. But we are not sure if driver could change the system battery information and raise such a power change event. We think this might be impossible but It's better to test this directly. So you could just give a try about this.

Thank you.

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