1. Architectures
1.1. x86
1.2. ARM
1.3. PowerPC
1.4. Xtensa
1.5. MIPS
1.6. ARC
1.7. s390
1.8. SPARC
2. Drivers
2.1. Staging drivers
2.2. Graphics
2.3. Storage
2.4. Networking
2.5. Sound
2.6. USB
2.7. Bluetooth
2.8. Input
2.9. TV tuners, webcams, video capturers
2.10. Hardware monitoring
2.11. Memory technology devices (MTD)
2.12. Multi-function devices (MFD)