Author: avg Date: Tue Jul 16 15:44:07 2019 New Revision: 350039 URL: https://svnweb.freebsd.org/changeset/base/350039
Log: MFC r349408: gpio.4: document device hints common to all devices on gpiobus Modified: stable/12/share/man/man4/gpio.4 Directory Properties: stable/12/ (props changed) Modified: stable/12/share/man/man4/gpio.4 ============================================================================== --- stable/12/share/man/man4/gpio.4 Tue Jul 16 15:41:09 2019 (r350038) +++ stable/12/share/man/man4/gpio.4 Tue Jul 16 15:44:07 2019 (r350039) @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd November 5, 2013 +.Dd June 26, 2019 .Dt GPIO 4 .Os .Sh NAME @@ -103,12 +103,36 @@ passed to the kernel, being either statically compiled of ways where the boot loader (or Open Firmware enabled system) passes the DTS blob to the kernel at boot. .Pp +On a +.Xr device.hints 5 +based system these hints can be used to configure drivers for devices +attached to +.Nm +pins: +.Bl -tag -width ".Va hint.driver.unit.pins" +.It Va hint.driver.unit.at +The +.Nm gpiobus +where the device is attached. +For example, +.Qq gpiobus0 . +.Ar driver +and +.Ar unit +are the driver name and the unit number for the device driver. +.It Va hint.driver.unit.pins +This is a bitmask of the pins on the +.Nm gpiobus +that are connected to the device. +The pins will be allocated to the specified driver instance. +.El +.Pp The following .Xr device.hints 5 are only provided by the .Cd ar71xx_gpio driver: -.Bl -tag -width ".Va hint.gpioiic.%d.atXXX" +.Bl -tag -width ".Va hint.gpio.function_clear" .It Va hint.gpio.%d.pinmask This is a bitmask of pins on the GPIO board that we would like to expose for use to the host operating system. @@ -133,6 +157,7 @@ of some device in a system. .Xr gpioiic 4 , .Xr gpioled 4 , .Xr iicbus 4 , +.Xr device.hints 5 , .Xr gpioctl 8 .Sh HISTORY The _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
