I\'m making a small kernel module to provide user-space access to some kernel-mode only features of an ARMv7 chip (specifically, cache control). I\'m reading through Linux Device Drivers by Corbet, Ru
What is the best way(performance) to have a bi-directional data flow between user-level and kernel-level ?
I\'m trying to be able to execute \"make debug\" at the command line and it will build my driver module with the -DDEBUG_OUTPUT define, which will cause certain sections of code to be compiled in.
I want a character device to flush as I write to it. 开发者_如何学GoHow do I call the file_operation\'s flush method?
I\'m studying on writing embedded lin开发者_JS百科ux driver, and decided to fire a few GPIOs to make sure I understand the book (LDD3, chap9.4.1) correctly.
For some reason on Windows you need a different driver for every device to work with ADB. In Linux you just add the ID\'s to a file. We have been trying to figure out how to make a more universal ADB
Consider arm as platform and Linux as OS used. Consider cache is disabled by means of enabling CONFIG_CPU_DCACHE_DISABLE in k开发者_如何学JAVAernel config.
I am trying to learn Device Drivers and tried to compile a code, but I get the below error messages. I would appreciate if you give me pointers to resolve this issue
How does probe() call gets called? Who calls it? As per my understanding, __init() registers driver and then somehow probe() is called to register the device data and irq etc. How exactly it happens?
I am really new to linux module programming. I开发者_如何学Go need to some how be able to do some tweak to the ath9k driver in linux.
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