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If applicable, add the following below this CDDL HEADER, with the .\" fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner] .TH HID 4D "June 19, 2021" .SH NAME hid \- Human interface device (HID) class driver .SH SYNOPSIS .nf \fBkeyboard@unit-address\fR \fBmouse@unit-address\fR \fBinput@unit-address:consumer_control\fR \fB#include \fR \fBint ioctl(int fildes, int command, ... /*arg*/);\fR .fi .SH DESCRIPTION The \fBhid\fR driver is a USBA (Solaris USB Architecture) compliant client driver that supports the \fIHuman Interface Device Class (HID) 1.0\fR specification. The Human Interface Device (HID) class encompasses devices controlled by humans to operate computer systems. Typical examples of HID devices include keyboards, mice, trackballs, and joysticks. HID also covers front-panel controls such as knobs, switches, and buttons. A USB device with multiple interfaces may have one interface for audio and a HID interface to define the buttons that control the audio. .sp .LP The \fBhid\fR driver is general and primarily handles the USB functionality of the device and generic HID functionality. For example, HID interfaces are required to have an interrupt pipe for the device to send data packets, and the \fBhid\fR driver opens the pipe to the interrupt endpoint and starts polling. The \fBhid\fR driver is also responsible for managing the device through the default control pipe. In addition to being a USB client driver, the \fBhid\fR driver is also a STREAMS driver so that modules may be pushed on top of it. .sp .LP The HID specification is flexible, and HID devices dynamically describe their packets and other parameters through a HID report descriptor. The HID parser is a misc module that parses the HID report descriptor and creates a database of information about the device. The \fBhid\fR driver queries the HID parser to find out the type and characteristics of the HID device. The HID specification predefines packet formats for the boot protocol keyboard and mouse. .SH IOCTLS .ne 2 .na \fB\fBHIDIOCKMGDIRECT\fR\fR .ad .RS 19n This ioctl should only be addressed to a USB keyboard or mouse device. The \fBhid\fR driver maintains two streams for each USB keyboard/mouse instance: an internal one for the use of the kernel and an external one for the use of user applications. This ioctl returns the information of which stream gets the input for the moment. .sp \fIarg\fR must point to a variable of \fBint\fR type. Upon return, \fB0\fR means the internal stream gets the input, \fB1\fR means the external stream gets the input. .RE .sp .ne 2 .na \fB\fBHIDIOCKMSDIRECT\fR\fR .ad .RS 19n This ioctl should only be addressed to a USB keyboard or mouse device. The hid driver maintains two streams for each USB keyboard/mouse instance: an internal one for the use of the kernel and an external one for the use of user applications. This ioctl sets which stream should get the input for the moment. .sp \fIarg\fR must point to a variable of \fBint\fR type. The argument \fB0\fR means the internal stream gets the input, \fB1\fR means the external stream gets the input. .RE .SH FILES .ne 2 .na \fB\fB/kernel/drv/amd64/hid\fR\fR .ad .sp .6 .RS 4n 64-bit x86 ELF kernel hid module .RE .sp .ne 2 .na \fB\fB/kernel/drv/sparcv9/hid\fR\fR .ad .sp .6 .RS 4n 64-bit SPARC ELF kernel hid module .RE .sp .ne 2 .na \fB\fB/kernel/misc/amd64/hidparser\fR\fR .ad .sp .6 .RS 4n 64-bit x86 ELF kernel hidparser module .RE .sp .ne 2 .na \fB\fB/kernel/misc/sparcv9/hidparser\fR\fR .ad .sp .6 .RS 4n 64-bit SPARC ELF kernel hidparser module .RE .SH ATTRIBUTES See \fBattributes\fR(7) for descriptions of the following attributes: .sp .sp .TS box; c | c l | l . ATTRIBUTE TYPE ATTRIBUTE VALUE _ Architecture SPARC, x86, PCI-based systems .TE .SH SEE ALSO .BR usba (4D), .BR virtualkm (4D), .BR attributes (7), .BR cfgadm_usb (8) .sp .LP \fIWriting Device Drivers\fR .sp .LP \fISTREAMS Programming Guide\fR .sp .LP \fIUniversal Serial Bus Specification 1.0 and 1.1\fR .sp .LP \fIDevice Class Definition for Human Interface Devices (HID) 1.1\fR .sp .LP \fISystem Administration Guide: Basic Administration\fR .SH DIAGNOSTICS .ne 2 .na \fBhid_attach: Unsupported HID device.\fR .ad .sp .6 .RS 4n The device requires a protocol not supported by the hid driver. .RE .sp .ne 2 .na \fBParsing of hid descriptor failed.\fR .ad .sp .6 .RS 4n The HID report descriptor cannot be parsed correctly. The device cannot be supported by the hid driver. .RE .sp .ne 2 .na \fBInvalid report descriptor.\fR .ad .sp .6 .RS 4n The HID report descriptor is invalid. The device cannot be supported by the hid driver. .RE .sp .LP The following messages may be logged into the system log. They are formatted in the following manner: .sp .in +2 .nf ): message... .fi .in -2 .sp .sp .ne 2 .na \fBhid_attach: Unsupported HID device.\fR .ad .sp .6 .RS 4n The device cannot be supported by this version of the HID driver. .RE .sp .ne 2 .na \fBParsing of HID descriptor failed.\fR .ad .sp .6 .RS 4n The device cannot be supported by this version of the HID driver. .RE .sp .ne 2 .na \fBInvalid report descriptor.\fR .ad .sp .6 .RS 4n The device cannot be supported by this version of the HID driver. .RE .SH NOTES The hid driver currently supports only keyboard, mouse and audio HID control devices. .sp .LP Normally a mouse is not power managed and consequently, screen darkening can be undone with a mouse movement. If power management of the mouse is required, add the following line to \fBhid.conf\fR then reboot the system: .sp .in +2 .nf hid-mouse-pm-enable; .fi .in -2 .sp .LP Modern mice that are power managed require a 'click' to wake up. Occasionally, this may cause unexpected results.