Re: Device driver mode bits and other skulduggery.

2016-06-28 Thread Eric S. Raymond
Hal Murray : > There may have been a general idea that flag4 would be used to > enable clockstats from an individual driver instance. I'm getting that impression, yes. By the way, the one change I made immediately after putting that table together was to add a 'subtype' option keyword that is an

Re: Device driver mode bits and other skulduggery.

2016-06-28 Thread Hal Murray
e...@thyrsus.com said: > One thing that jumps out at me is that several drivers have a clockstats > verbosity option, always flag4 (which, alas, is used for other things too). There may have been a general idea that flag4 would be used to enable clockstats from an individual driver instance. T

Device driver mode bits and other skulduggery.

2016-06-28 Thread Eric S. Raymond
Hal Murray : > bps may not be enough. There is also the parity and stop bits, but I don't > think they are fiddled much. > > The HP driver uses one mode bit to switch from whatever the default is to a > different baud rate and parity. It may be simpler to use a device-type > keyword rather th