RT-Thread/rt-thread — pull request #142 by grissiom (2013-08-19 04:30:15+00:00)
Title: device/pipe: add rt_pipe_{init,detach}

This provide the possibility that allocate the buffer of the ringbuffer
on a specific region, instead of always mallocing it. It also bring us
the benefit of using pipe device on the systems without heap.