作者：华清远见嵌入式学院。《Linux设备驱动开发详解》（08&09年度畅销榜TOP50）第23章、Linux设备驱动的移植。在编写Linux设备驱动的时候，驱动程序所服务的硬件芯片可能会在公司的多个采用不同处理器的系统中用到，因此，在编写驱动时，应该尽量考虑其可移植性，23.1节从数据类型、结构体对界、大小端模式、内存页面大小等多个角度阐述了编写可移植驱动程序的注意事项。“他山之石，可以攻玉”，为了高效地推出新的设备驱动，借用demo板、类似芯片和厂商范例程序是几种很有效的手段，23.2节讲解了这些快速编写设备驱动的方法。23.3节讲解了Linux 2.4和Linux 2.6内核在设备驱动方面的差异，通过对两者差异的分析，可以得出移植Linux 2.4内核驱动到Linux2.6内核的方法。23.4节给出了将其他操作系统内的驱动移植到Linux中的方法，主要分析了实时操作系统VxWorks设备驱动和Linux设备驱动的异同点。-Author: HuaQing vision embedded institute. The Linux device driver development "(08 and 09 sep TOP50) annual list of best-selling chapter 23, Linux device driver transplantation. Linux device drivers in writing, the driver served by the hardware in the company of the chip may DuoGe using different processor used in the system, thus, in writing driver, should try to consider its portability, section 23.1 from the data type, the structure of the world body size, the model, memory, etc DuoGe page size explains write portable driver s attention. "Learning from others, may attack the jade", in order to efficiently launching the new device drivers, borrow demo board, similar chip and manufacturers example program is several very effective means, section 23.2 explained these fast write device drivers method. 23