Re: [PATCH -next 0/4] spi: Introduce BPF based SPI mockup controller

[Mark Brown]

On Tue, Aug 30, 2022 at 08:09:16PM +0100, Mark Brown wrote:

> There was a series in the past year or so from someone
> implementing a similarish idea but rather than using BPF they
> provided a framework for writing device emulations in qemu with
> a simplified Python framework.  That seemed like a more obvious
> direction here.  They were initially focusing on I2C but it's a
> similar space.  Unfortunately I'm drawing a blank on who was
> working on it or the name of the framework so I can't give a
> useful reference here.  Their direction was towards having
> something that could also be used to validate what the driver was
> doing to the device from the device's perspective.  I do know it
> was written up on LWN.  Hopefully someone else will remember what
> I'm talking about from this vauge description.

The framework I was thinking of is called roadtest from Vincent
Whitchurch who I've copied in here.

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