I believe the best and worst thing about Linux is its hard distinction between kernel space and user space. Without that distinction, Linux never would have become the most leveraged operating system ...

Here are the benefits and some caveats to running data-path applications in the user space. Discussed is Linux's UIO framework. Traditionally, packet-processing or data-path applications in Linux have ...

Due to the complexity of developing and maintaining the kernel, only the most essential and performance-critical code are placed in the kernel. Other things, such as GUI, management and control code, ...

Your new project really could use a block device for Linux. File systems are easy to do with FUSE, but that’s sometimes too high-level. But a block driver can be tough to write and debug, ...

Small Linux-based devices often need to load firmware before a filesystem is available. A new kernel feature would replace driver-specific code with a general API for getting all needed firmware up ...