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Questions - device-driver

Can I increase a thread irq priority

I write a device driver to receive data from the hardware. The logic is when device data is ready, it will send an irq to the Linux host. The communication interface is SPI. However, the SPI controlle...
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gaosiy

linux-kernel

device-driver

irq

Votes: 0

Answers: 0

MacOS PCI dext: scatter-gather DMA to application buffer

I am porting a MacOS PCI driver written with IOKit to the new PCIDriverKit framework. I am able to perform DMA with a contiguous buffer allocated inside the dext (with IOBufferMemoryDescriptor::Create...
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Philippe Cornet

macos

device-driver

iokit

driverkit

macos-system-extension

Votes: 0

Answers: 1

Latest Answer

It's not quite the same question as yours, but in my answer to it I go into some detail on memory descriptors in DriverKit extensions. Basically, in DriverKit you can only access user space memory tha...
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pmdj

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