The biggest change we’ve seen in the Linux kernel for ARM over the past few years has been the transition to providing descriptions of the hardware in systems via device tree. This splits out the description of the devices in the system that can’t be automatically enumerated from the kernel into a separate binary instead […]
Just over a year ago I implemented an optimization to the SPI core code in Linux that avoids some needless context switches to a worker thread in the main data path that most clients use. This was really nice, it was simple to do but saved a bunch of work for most drivers using SPI and made things […]
One of the difficulties of being a kernel maintainer for a busy subsystem is that you will often end up getting a lot of mail that requires reading and handling which in turn requires sending a lot of mail out in reply. Some of that requires thought and careful consideration but a lot of it […]