文件名称:linux_uart_driver(1)
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介绍了Linux下的串口驱动的设计层次及接口, 并指出串口与TTY终端之间的关联层次(串口可作TTY终端使用), 以及Linux下的中断处理机制/中断共享机制, 还有串口缓冲机制当中涉及的软中断机制 其中有关w83697/w83977 IC方面的知识-Introduced the Linux serial port driver under the design level and interface, and that serial correlation with the level between the TTY terminal (TTY serial port can be used for end-use), and interrupt handling mechanism under Linux/interrupt sharing mechanism, there are serial buffer mechanism involving the soft interrupt mechanism which the w83697/w83977 IC knowledge
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linux_uart_driver(1).pdf