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IICHID(4) 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 sampling mode). hw.iichid.debug Debug output level, where 0 is debugging disabled and larger values increase debug message verbosity. Default is 0. SEE ALSO ig4(4) BUGS The iichid does not support GPIO interrupts yet. In that case iichid enables sampling mode with periodic polling of hardware by driver means. See dev.iichid.*.sampling_* sysctl(8) 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 13.2 September 21, 2020 IICHID(4)
NAME | SYNOPSIS | DESCRIPTION | SYSCTL VARIABLES | SEE ALSO | BUGS | HISTORY | AUTHORS
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