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Posix, Device- and Class-Specific Functions

terminalMode    :: TerminalMode -> TerminalAttributes -> Bool
withMode        :: TerminalAttributes -> TerminalMode -> TerminalAttributes
withoutMode     :: TerminalAttributes -> TerminalMode -> TerminalAttributes

bitsPerByte     :: TerminalAttributes -> Int
withBits        :: TerminalAttributes -> Int -> TerminalAttributes

controlChar     :: TerminalAttributes -> ControlCharacter -> Maybe Char
withCC          :: TerminalAttributes
                -> (ControlCharacter, Char)
                -> TerminalAttributes 
withoutCC       :: TerminalAttributes 
                -> ControlCharacter 
                -> TerminalAttributes
                  
inputTime       :: TerminalAttributes -> Int
withTime        :: TerminalAttributes -> Int -> TerminalAttributes
                  
minInput        :: TerminalAttributes -> Int
withMinInput    :: TerminalAttributes -> Int -> TerminalAttributes
                  
inputSpeed      :: TerminalAttributes -> BaudRate
withInputSpeed  :: TerminalAttributes -> BaudRate -> TerminalAttributes
                  
outputSpeed     :: TerminalAttributes -> BaudRate
withOutputSpeed :: TerminalAttributes -> BaudRate -> TerminalAttributes

getTerminalAttributes :: Fd -> IO TerminalAttributes
`getTerminalAttributes fd' calls `tcgetattr' to obtain the `TerminalAttributes' associated with `Fd' `fd'. 
setTerminalAttributes :: Fd
                      -> TerminalAttributes 
                      -> TerminalState
                      -> IO ()
`setTerminalAttributes fd attr ts' calls `tcsetattr' to change the `TerminalAttributes' associated with `Fd' `fd' to `attr', when the terminal is in the state indicated by `ts'. 
sendBreak :: Fd -> Int -> IO ()
`sendBreak fd duration' calls `tcsendbreak' to transmit a continuous stream of zero-valued bits on `Fd' `fd' for the specified implementation-dependent `duration'. 
drainOutput :: Fd -> IO ()
`drainOutput fd' calls `tcdrain' to block until all output written to `Fd' `fd' has been transmitted. 
discardData :: Fd -> QueueSelector -> IO ()
`discardData fd queues' calls `tcflush' to discard pending input and/or output for `Fd' `fd', as indicated by the `QueueSelector' `queues'. 
controlFlow :: Fd -> FlowAction -> IO ()
`controlFlow fd action' calls `tcflow' to control the flow of data on `Fd' `fd', as indicated by `action'. 
getTerminalProcessGroupID :: Fd -> IO ProcessGroupID
`getTerminalProcessGroupID fd' calls `tcgetpgrp' to obtain the `ProcessGroupID' of the foreground process group associated with the terminal attached to `Fd' `fd'. 
setTerminalProcessGroupID :: Fd -> ProcessGroupID -> IO ()
`setTerminalProcessGroupID fd pgid' calls `tcsetpgrp' to set the `ProcessGroupID' of the foreground process group associated with the terminal attached to `Fd' `fd' to `pgid'.
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