So that shell scripts do not blunder on after errors.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

the same as everyone elses.

This is an interim version which will work on both Pi v1 and v2
boards until I have a bit more time to implement the correct
stuff for v2.

Debian package creation - crude, probably violated the Debian policys
but it seems to work just fine...
some other changes.

Moved the extensions into wiringPi from gpio and made it more general purpose
more so that RTB and anything else can dymanically add devices
into wiringPi.
Changes to GPIO to updates for the SPI and I2C module loads
Added gpio unload for SPI and I2C.

Added a new way to setup SPI - by passing the mode in.

Support for the new Pi2 thing too

for the SPI code - it's mentioned in spidev.h but not used in the actual
kernel documentation example spi_test.c program )-:

round at last..

Updated for the 0x0012 board revision on the new A+

of changing it for the B+)

Aded a gpio command: usbp hi/low - to change the usb power

Should now work correctly on Arch, or other systems that install gpio as
/usr/bin/gpio.

to produce a nicer 'readall' output too.

It also understands new pins 53,54,55 and 56 in wiringPiSetupPhys()
mode to represent the pins on the P5 connector on the Rev 2 Pi's

Changes to pinMode() to allow new modes SOFT_PWM and SOFT_TONE.

bugfix in blink.sh - wring pin
improving the maxdetect routing - a little.
gpio pins

Tweaked the mcp3422 code
altered the build script to let me build static

Written some examples for the PiGlow board
bumped wiringPi version

bumped version.

so write a little test program with it too.
Updated gpio to use the sn3218 too.

fixed the max5322 code.

mcp3004.c bugfixed. It works now!

Added new code for max31855

with wiringPiISR.
Added the ability to readall/reset from extension modules.
Changed the build script to use /bin/sh rather than /bin/bash as it seems
some installations don't have /bin/bash (or if they do, then the people who
are telling me that ./build gives them command not found are wrong)

Added the Quick 2 Wire codes, etc.
Minor typo/bug fixes.
Added more modules into gpio -x

the module.
Typo in gpio man page
Bug fixed in board revision detection (which would never happen
anyway, however)

(Or maybe Broadcom did!!!)

one of the GPCLK drivers to generate a frequency up to
19.2MHz.

Tidied some code up and added the clock functions into the gpio
utility.

Added in generic 'blink' programs in the examples in C, RTB and Shell.
Updated wiringPi with a little big-file on the millis() function and
added in a new micros() function too.
Updated the examples with standard LGPL headers.
Added a new isr-osc.c test program - just for ISR timing purposes.

I2C libraries again - but only if the right headers are
installed!

on non Raspbian systems (and even on some Raspbian systems it would appear ):

fixed a timing issue on softTone
fixed some issues in wiringPisetup introduced when optimising the mmap calls.

(hopefully!)
Also updated all the mmap code in wiringPiSetup() to make it a bit more
sane and efficient to a degree.

libraries.
Bumped gpio version.

Changed built to work marginally better.

and developed the new ISR - Interrupt Service Routine
handler - much easier than the old waitForInterrupt code!

Minor tweaks to the gpio program to recognise the environment variable
WIRINGPI_DEBUG too, and removed the printing of the errors from the
main wiringPi setup routines (and added some new ones!)

delayMicrosecondsHard re-written - again.
Added a serialRead example program, and added in the okLed
to the examples too.
Updated/checked some of the GPIO/PWM code.
Added in some experimental servo and tone generating code and
and example or 2.
Tweaks to the gpio command to correctly load the I2C modules too.

Also Makefile tweaks to help improve things somewhat - decided to
read the Makefile manual after some 15 years to updated my make
grey cells somewhat.

New command in the gpio command - readall