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hil(4) [netbsd man page]

HIL(4)							   BSD Kernel Interfaces Manual 						    HIL(4)

hil -- introduction to HP-HIL support SYNOPSIS
hp300 hil* at intio? hilkbd* at hil? hilms* at hil? hilid* at hil? DESCRIPTION
The hil interface provides access to the ``Human Interface Loop'' controller found on many HP workstations. It provides generic HIL management and interfaces for child devices, such as keyboards, button boxes, mice, graphics tablet, and ID modules. NetBSD provides support for the following devices: hilid(4) HIL ID module device hilkbd(4) HIL keyboard device hilms(4) HIL mouse and graphics tablet device SEE ALSO
intro(4) BSD
February 9, 2011 BSD

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hilkbd(7)						 Miscellaneous Information Manual						 hilkbd(7)

hilkbd - HP-HIL mapped keyboard driver DESCRIPTION
HP-HIL, the Hewlett-Packard Human Interface Link, is the Hewlett-Packard standard for interfacing a personal computer, terminal, or work- station to its input devices. supplies input from all mapped keyboards on a specified HP-HIL link. returns mapped keycodes, not ASCII characters. "Raw" keycodes are the individual key downstrokes and upstrokes, and are different for each type of keyboard. maps the raw input into the keycodes and protocol expected by the HP-UX, Pascal Workstation, and BASIC/UX operating sys- tems. The driver can usurp a keyboard from by changing it from mapped mode to raw mode. System Calls gives exclusive access to the keyboard. If there is an ITE (internal terminal emulator) associated with the keyboard, the ITE loses input from the keyboard until the keyboard device is closed. Any previous queued input for the keyboard device is flushed from the input queue. returns control of the keyboard to the ITE, if present. Any unread input is discarded at that time. returns data from the keyboard in time-stamped packets: time_stamp, when repacked into an integer data type of four or more bytes, specifies the time since an arbitrary point in the past (for example, system start-up time). This point does not change between packets, but time during a power failure may or may not be counted. The time is in units of tens of milliseconds. The status byte encodes the state of the keyboard and keys: 0x8X shift and control 0x9X control only 0xAX shift only 0xBX no shift or control The data byte contains the actual keystroke. If the file status flag O_NDELAY is set, returns instead of blocking, when no data is available. The system call on an HP-HIL keyboard is considered "slow"; that is, it can be interrupted by caught signals (see signal(2)). is not supported by can be used to poll for input to read from devices. for write or for exceptional conditions always returns a false indication in the bit masks. is used to perform special operations on the device. system calls have the form: The following request codes are defined in Read the configuration code. This request returns a one-byte configuration code in the variable to which arg points. This contains a field, defined by which specifies the keyboard identification code. The possible values of this field are defined in the header file, and this identification code affects interpretation of the language code. All other fields in the configuration code are cur- rently undefined. Read the language code. This request returns a one-byte language code, as read from the keyboard, in the variable to which arg points. If there is more than one keyboard, the language is taken from the first keyboard on the link. Interpretation of the language code is affected by the keyboard identification field within the configuration code. Read the keyboard status register. This request returns a one-byte value containing bit flags specifying the state of the shift and control keys in the vari- able to which arg points: KBD_STAT_LEFTSHIFT The left shift key is up KBD_STAT_RIGHTSHIFT The right shift key is up KBD_STAT_SHIFT Both shift keys are up KBD_STAT_CTRL The control key is up Other bits are undefined. Set the keyboard auto-repeat rate. The one-byte value to which arg points is the negative of the repeat period, in tens of milliseconds. The repeat rate is the reciprocal of the repeat period. A parameter of zero disables auto-repeat. Set the keyboard auto-repeat delay. The one-byte value to which arg points is the negative of the repeat delay, in tens of milliseconds. Cause an audible beep. The one-byte value to which arg points specifies the volume of the beep, within the range through Implementations with fewer than discrete levels of volume will scale the parameter into the smaller range. ERRORS
An invalid parameter was detected by A signal was caught during a system call. No keyboard is present on the HP-HIL link specified by the minor number. An attempt was made to use using The device is already open. AUTHOR
was developed by the Hewlett-Packard Company. FILES
/dev/hilkbd* SEE ALSO
mknod(1M), select(2), signal(2), hil(7), termio(7). hilkbd(7)
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