01 2016 档案
摘要:测试:1:make menuconfig去掉原来的驱动程序 Device Drivers ---> Graphics support ---> <M> S3C2410 LCD framebuffer support 2: make uImage make modules cp arch/arm/bo
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摘要:1.分配一个fb_info结构体: framebuffer_alloc 2.设置 3.注册 4.硬件相关操 struct fb_fix_screeninfo { char id[16]; /* identification string eg "TT Builtin" */ unsigned lon
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摘要:app: read() -------------------------------------------------------------------------------------------- kernel: fb_read int fbidx = iminor(inode); st
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摘要:drivers/input/input.c: input_init > err = register_chrdev(INPUT_MAJOR, "input", &input_fops); static const struct file_operations input_fops = { .owne
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摘要:最近看了一下Linux Poll 机制的实现,看了韦老师的分析文档,总结如下:int poll(struct pollfd *fds,nfds_t nfds, int timeout);总的来说,Poll机制会判断fds中的文件是否可读,如果可读则会立即返回,返回的值就是可读fd的数量,如果不可读,...
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