Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
IICHID(4)	       FreeBSD Kernel Interfaces Manual		     IICHID(4)

NAME
     iichid -- I2C HID transport driver

SYNOPSIS
     To	compile	this driver into the kernel, place the following lines in your
     kernel configuration file:

	   device iichid

     Alternatively, to load the	driver as a module at boot time, place the
     following line in loader.conf(5):

	   iichid_load="YES"

DESCRIPTION
     The iichid	driver provides	a interface to I2C Human Interface Devices
     (HIDs).

SYSCTL VARIABLES
     Next parameters are available as sysctl(8)	variables.  Debug parameter is
     available as loader(8) tunable as well.

     dev.iichid.*.sampling_rate_fast
	     Active sampling rate in num/second	(for sampling mode).

     dev.iichid.*.sampling_rate_slow
	     Idle sampling rate	in num/second (for sampling mode).

     dev.iichid.*.sampling_hysteresis
	     Number of missing samples before enabling of slow mode (for sam-
	     pling mode).

     hw.iichid.debug
	     Debug output level, where 0 is debugging disabled and larger val-
	     ues increase debug	message	verbosity.  Default is 0.

SEE ALSO
     ig4(4)

BUGS
     The iichid	does not support GPIO interrupts yet.  In that case iichid en-
     ables sampling mode with periodic polling of hardware by driver means.
     See dev.iichid.*.sampling_* sysctl(4) variables for tuning	of sampling
     parameters.

HISTORY
     The iichid	driver first appeared in FreeBSD 13.0.

AUTHORS
     The iichid	driver was written by Marc Priggemeyer
     <marc.priggemeyer@gmail.com> and Vladimir Kondratyev <wulf@FreeBSD.org>.

     This manual page was written by Vladimir Kondratyev <wulf@FreeBSD.org>.

FreeBSD	13.0		      September	21, 2020		  FreeBSD 13.0

NAME | SYNOPSIS | DESCRIPTION | SYSCTL VARIABLES | SEE ALSO | BUGS | HISTORY | AUTHORS

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=iichid&sektion=4&manpath=FreeBSD+13.0-RELEASE+and+Ports>

home | help