linux下GPRS/CDMA串口多路复用驱动源码，支持linux-2.6.29内核。-linux driver source code under the GPRS/CDMA serial multiplexer supports linux-2.6.29 kernel.

针对sim908模块的GPRS、GPS驱动程序，实现短信、通话、上网、定位等功能-For GPRS sim908 module, GPS driver, to achieve SMS, calls, Internet access, positioning and other functions

运行环境是Mini2440，是一个简单的GPRS驱动程序，源码中也有注释。-Operating environment is Mini2440, is a simple GPRS driver, there are comments in the source code.