tailieunhanh - Linux IO Port Programming

Linux IO Port Programming | Linux I O port programming mini-HOWTO Linux I O port programming mini-HOWTO Table of Contents Linux I O port programming Author Riku Saikkonen .1 1. 2. Using I O ports in C 3. Interrupts IRQs and DMA 4. High-resolution 5. Other programming 6. Some useful 7. 8. 9. Example code .1 10. Credits .1 1. 2. Using I O ports in C The normal Accessing the An alternate method dev 3. Interrupts IRQs and DMA 4. High-resolution Sleeping sleep and usleep .4 nanosleep .4 Delaying with port I Delaying with assembler rdtsc for Measuring 5. Other programming 6. Some useful The parallel port .6 The game joystick port .8 The serial 7. Hints .9 8. 9. Example 10. Credits .11 i Linux I O port programming mini-HOWTO Author Riku Saikkonen 2000-12-13 This HOWTO document describes programming hardware I O ports and waiting for small periods of time in user-mode Linux programs running on the Intel x86 architecture. 1. Introduction 2. Using I O ports in C programs The normal method An alternate method dev port 3. Interrupts IRQs and DMA access 4. High-resolution timing Delays Measuring time 5. Other programming languages 6. Some useful ports The parallel port The game joystick port The serial port 7. Hints 8. Troubleshooting 9. Example code 10. Credits Linux I O port programming mini-HOWTO

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