HP-UX Reference (11i v3 07/02) - 7 Device (Special) Files, 9 General Information, Index (vol 10)

t
termio(7) termio(7)
Bit Value
m3 TI/ALP
m2 0 = Simple protocol (U.S.),
1 = CCITT protocol (Europe)
m1m0 00 = Direct
01 = Dial-out modem
10 = Dial-in modem
11 = Invalid
Servers
Timed output delays are not directly supported. If used, an appropriate number of fill characters (based on
the current baud rate) is output. The total time to output the fill characters is at least as long as the time
requested.
The system specified input flow control values are as follows: low water mark is 60, high water mark is
180, and maximum allowed input is 512.
The HP 98196A (formerly 27140A option 800) interface does not support the following hardware settings:
CBAUD B200, B38400, EXTA, EXTB.
The HP A1703-60003 and the HP 28639-60001 interfaces do not support baud rates above 9600. Further-
more, changing the following hardware settings on port 0 from the default (9600 baud, 8 bit characters, 1
stop bit, no parity) is not supported:
CBAUD, CSIZE, CSTOPB, PARENB, PARODD.
The HP J2094A interface does not support baud rates above 19200.
The HP J2094A supports RTS and CTS flow control. The RTS/CTS hardware handshaking can be enabled
through a bit in the device file minor number, through an ioctl() call (see termiox (7)), or through the
stty command (see stty(1)).
Device File Minor Number
Server device file minor numbers take the form:
0xIIPPHM
where:
II = Two hexadecimal digits (8 bits) to indicate the instance of the serial interface.
PP = Two hexadecimal digits (8 bits) to indicate the port number of this device on the serial
interface.
H = One hexadecimal digit (4 bits) which controls diagnostic access and hardware flow control
(HP J2094A only).
Bit Value
h3 Card diagnostic
h2 Port diagnostic
h1 Reserved
h0 Enables RTS/CTS hardware flow control
M = One hexadecimal digit (4 bits) for the port access type. Values for each bit are as follows:
228 Hewlett-Packard Company − 20 − HP-UX 11i Version 3: February 2007