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update for the v3+

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This commit is contained in:
Gordon Henderson
2018-03-14 07:17:04 +00:00
parent 96344ff712
commit 8d188fa0e0
17 changed files with 281 additions and 154 deletions
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35
gpio/gpio.1
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@@ -1,4 +1,4 @@
.TH GPIO 1 "September 2015" wiringPi "Command-Line access to Raspberry Pi's GPIO"
.TH GPIO 1 "March 2018" wiringPi "Command-Line access to Raspberry Pi's GPIO"
.SH NAME
gpio \- Command-line access to Raspberry Pi's GPIO
@@ -9,7 +9,7 @@ gpio \- Command-line access to Raspberry Pi's GPIO
.PP
.B gpio
.B [ \-g | \-1 ]
.B mode/read/write/aread/awrite/wb/pwm/clock/toggle/blink ...
.B mode/read/write/aread/awrite/wb/pwm/pwnTone/clock/toggle/blink ...
.PP
.B gpio
.B [ \-x extension:params ]
@@ -21,6 +21,11 @@ gpio \- Command-line access to Raspberry Pi's GPIO
.B ...
.PP
.B gpio
.B [ \-p ]
.B pwnTone pin frequency
.B ...
.PP
.B gpio
.B readall
.PP
.B gpio
@@ -256,30 +261,6 @@ Change the PWM mode to balanced (the default) or mark:space ratio (traditional)
.B pwmr
Change the PWM range register. The default is 1024.
.TP
.B load i2c [baudrate]
This loads the i2c or drivers into the kernel and changes the permissions
on the associated /dev/ entries so that the current user has access to
them. Optionally it will set the I2C baudrate to that supplied in Kb/sec
(or as close as the Pi can manage) The default speed is 100Kb/sec.
Note: On recent kernels with the device tree enabled you should use the
raspi-config program to load/unload the I2C device at boot time.
.TP
.B load spi
This loads the spi drivers into the kernel and changes the permissions
on the associated /dev/ entries so that the current user has access to
them. It used to have the ability to change the buffer size from the
default of 4096 bytes to an arbitrary value, however for some time the
Pi Foundation have compiled the SPI device driver into the kernel and
this has fixed the buffer size. The way to change it now is to edit
the /boot/cmdline.txt file and add on spdev.bufsiz=8192 to set it to
e.g. 8192 bytes then reboot.
Note: On recent kernels with the device tree enabled you should use the
raspi-config program to load/unload the SPI device at boot time.
.TP
.B gbr
channel
@@ -360,7 +341,7 @@ Please report bugs to <projects@drogon.net>
.SH COPYRIGHT
Copyright (c) 2012-2015 Gordon Henderson
Copyright (c) 2012-2018 Gordon Henderson
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.