Commit Graph

2 Commits

Author SHA1 Message Date
Marcel Moolenaar
f1aad6d9b2 Add method enabled() to the SCC interface. This method can be used
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.
2007-03-28 18:05:17 +00:00
Marcel Moolenaar
6174e6ed12 Add scc(4), a driver for serial communications controllers. These
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.
2006-03-30 18:33:22 +00:00