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open_device
2008 Nov 25
1
sio vs uart vs ucomm problems / differences
We are in the process of migrating one of our embedded apps to use
uart by default instead of sio in RELENG_7 in prep for the day when
sio eventually disappears. Unfortunately, the application doesnt
want to work with uart with puc backed devices, but still works with
sio. Stranger still, the app works with the uart driver when uart
attaches to the built in com port on the isa bus. However,