Lines Matching +full:input +full:- +full:value

1 .\" Copyright (c) 2000-2002
58 .Tn PCL-724
60 Other 8255A-based peripherals such as the
66 The PPI provides two 8-bit ports (port A and port B) and
67 two 4-bit ports (port C upper, port C lower).
68 Each port can be individually programmed for input and
74 A separate register allows the configuration of ports for input
77 input data arrives at its terminals is impossible;
85 the corresponding hardware port for input or output.
86 At boot time all ports are set configured for input to avoid damaging
91 requests allow polled input and paced output to be
97 .Bl -tag -width ".No Differential"
108 Only port values that differ from the previous port value are returned.
117 will result in no more than one value being read or written every
127 .Bl -tag -width ".Dv PBIO_SETIPACE"
130 and sets the driver for differential input if the integer is non-zero.
131 The input pace speed determines the periodic interval the driver will use to
132 examine the port for a changed value.
135 and sets the integer to the last set value for differential input.
138 and sets the driver's input pacing speed to the value of that integer.
141 and sets the integer to the last set value for the input pace.
144 and sets the driver's output pacing speed to the value of that integer.
147 and sets the integer to the last set value for the output pace.
150 .Bl -tag -width ".Pa /dev/pbio0ch" -compact
172 .%P "53-69"
183 .Tn PCL-724