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* Make iclear return int, since that matches all function definitions of it.imp2009-02-051-1/+1
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* Add method enabled() to the SCC interface. This method can be usedmarcel2007-03-281-0/+16
| | | | | | | | by driver backends to mark individual channels as enabled or not. The default implementation of this method always mark channels as enabled. This method is currently not used, but is added with the PowerQUICC in mind where the 2nd SCC channel can be disabled.
* Add scc(4), a driver for serial communications controllers. Thesemarcel2006-03-301-0/+77
controllers typically have multiple channels and support a number of serial communications protocols. The scc(4) driver is itself an umbrella driver that delegates the control over each channel and mode to a subordinate driver (like uart(4)). The scc(4) driver supports the Siemens SAB 82532 and the Zilog Z8530 and replaces puc(4) for these devices.
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