标签：
1.TLMM
MSM TLMM pinmux controller，Qualcomm MSM integrates a GPIO and Pin mux/config hardware, (TOP Level Mode Multiplexer in short TLMM). It controls the input/output settings on the available pads/pins and also provides ability to multiplex and configure the output of various on-chip controllers onto these pads. The pins are also of different types, encapsulating different functions and having differing register semantics.
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原文地址：http://blog.csdn.net/loongembedded/article/details/50777176
