hpacel(4) [netbsd man page]

HPACEL(4)						   BSD Kernel Interfaces Manual 						 HPACEL(4)

NAME

     hpacel -- HP 3D DriveGuard accelerometer

SYNOPSIS

     hpacel* at acpi?

DESCRIPTION

     The hpacel device driver supports accelerometers that are commonly available in Hewlett-Packard laptops.  The supported chip is LIS3LV02DL
     from STMicroelectronics, although other chips from the same family, such as LIS3LV02DQ, may also work, provided that the vendor has imple-
     mented suitable ACPI access methods.

     The hpacel driver reports the acceleration readings of the X-, Y-, and Z-axis via the envsys(4) API and the envstat(8) command.

SEE ALSO

     acpi(4), aps(4), hpqlb(4), wmihp(4)

     STMicroelectronics, LIS3LV02DL: 3-Axis - +-2g/+-6g digital output low voltage linear accelerometer. AN2381 Application Note, Revision 1,
     http://www.st.com/stonline/products/literature/anp/12441.pdf, June, 2006.

HISTORY

     The hpacel device driver appeared in NetBSD 6.0.

AUTHORS

     Jukka Ruohonen <jruohonen@iki.fi>

BUGS

     The used accelerometer chip is capable of generating wake-up, direction detection, and free-fall interrupts.  In the ideal situation these
     could be used to evoke possible emergency action.	However, the hpacel driver only reports the readings from the accelerometer via
     sysmon_envsys(9).

BSD
								 September 7, 2011							       BSD

ACPIWMI(4)						   BSD Kernel Interfaces Manual 						ACPIWMI(4)

NAME

     acpiwmi -- Windows Management Instrumentation support for ACPI

SYNOPSIS

     acpiwmi* at acpi?
     acpiwmibus* at acpiwmi?
     wmidell* at acpiwmibus?
     wmieeepc* at acpiwmibus?
     wmihp* at acpiwmibus?
     wmimsi* at acpiwmibus?

DESCRIPTION

     The acpiwmi device driver provides an ACPI interface for Windows Management Instrumentation (WMI).  The ACPI WMI interface is typically used
     to support vendor specific features found in various laptops.

     The following WMI mappings are supported:

	   wmidell   Dell laptops

	   wmieeepc  Some models of Asus Eee PC

	   wmihp     Hewlett-Packard laptops

	   wmimsi    MSI laptops

     The functionality varies from vendor to vendor.  Typically the interface is used for function and hotkey handling, but additional features
     may be present.

SEE ALSO

     acpi(4), acpidalb(4)

     Microsoft Corporation, Windows Instrumentation: WMI and ACPI, http://www.microsoft.com/whdc/system/pnppwr/wmi/wmi-acpi.mspx, December 4,
     2001.

HISTORY

     The acpiwmi device driver appeared in NetBSD 6.0.

AUTHORS

     Jukka Ruohonen <jruohonen@iki.fi> wrote acpiwmi and most of the mappings.

CAVEATS

     While WMI should provide a certain degree of portability across laptop models from a particular vendor, there is no guarantee that the map-
     pings are functional in all models.

     The wmihp driver may conflict with hpqlb(4).

BSD
								 February 16, 2011							       BSD