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Linux kernel 笔记 (49)——ERESTARTSYS和EINTR

Posted by nanxiao on 十一月 20, 2015 in Linux kernel 笔记 |

LDD3中提到驱动代码返回ERESTARTSYS和EINTR时如何选择: Note the check on […]

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Linux kernel 笔记 (48)——CONFIG_STRICT_DEVMEM和/dev/crash

Posted by nanxiao on 十一月 20, 2015 in Linux kernel 笔记 |

CONFIG_STRICT_DEVMEM配置项的作用是控制对/dev/mem的访问:一旦置成yes,则只能访问 […]

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Linux kernel 笔记 (47)——操作信号量的函数

Posted by nanxiao on 十一月 20, 2015 in Linux kernel 笔记 |

操作信号量的函数如下: #include <linux/semaphore.h> void dow […]

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