[OpenWrt-Devel] [ramips] Linkit Smart 7688

[Ivan Hörler]

I tried to compile the package libmraa as single and have some problems with the dependencies:

Followed this: https://openwrt.org/docs/guide-developer/single.package
First i searched for all dependencies:

root at OpenWrt:/# opkg info libmraa
Package: libmraa
Version: 2.0.0-2
Depends: libc, libstdcpp6, libjson-c4
Status: install user installed
Section: libs
Architecture: mipsel_24kc
Size: 64409
Filename: libmraa_2.0.0-2_mipsel_24kc.ipk

root at OpenWrt:/# opkg info libc
Package: libc
Version: 1.1.23-2
Depends: libgcc1
Status: install hold installed
Essential: yes
Architecture: mipsel_24kc
Installed-Time: 1568571183

then i tried to make menuconfig so i can tick the dependencies but i did not find the dependencie of libc named libgcc1. 
A try to compile after installing tools and toolchain fails as well:

novski at ubuntu:~/Documents/openwrt$ make package/libgcc1/compile V=s
make[1]: Entering directory '/home/novski/Documents/openwrt'
make[1]: *** No rule to make target 'package/libgcc1/compile'.  Stop.
make[1]: Leaving directory '/home/novski/Documents/openwrt'
/home/novski/Documents/openwrt/include/toplevel.mk:216: recipe for target 'package/libgcc1/compile' failed
make: *** [package/libgcc1/compile] Error 2

Why do i not find the dependency libgcc1 in 'make menuconfig' search (/)?

Thanks, Ivan 


> Am 19.09.2019 um 20:18 schrieb Ivan Hörler <ivanhoerler at gmail.com>:
> 
> Hi
> I have problems makeing libmraa working on Linkit Smart 7688.
> The installation worked without problems and i tested with a python script. See details below:
> 
> what i did: 
> - Compiled a openWRT 18.6
> - opkg update 
> - opkg install libmraa
> - opkg install python3-light
> - opkg install libmraa-python3
> 
> - copied this skript to /root: 
> 
> import mraa
> import time
> 
> try:
>     print (mraa.getVersion())
> except:
>     print("no mraa available")
> 
> # Refer to the pin-out digram for the GPIO number to silk print mapping
> # in this example the number 44 maps to Wi-Fi LED.
> pin = mraa.Gpio(2)
> pin.dir(mraa.DIR_OUT)
> while True:
>     pin.write(1)
>     time.sleep(1)
>     pin.write(0)
>     time.sleep(1)
> 
> - and executed:
> root at OpenWrt:~# python3 mraa-test-simple.py 
> v2.0.0
> Traceback (most recent call last):
>   File "mraa-test-simple.py", line 11, in <module>
>     pin = mraa.Gpio(2)
>   File "/usr/lib/python3.7/site-packages/mraa.py", line 391, in __init__
>     _mraa.Gpio_swiginit(self, _mraa.new_Gpio(pin, owner, raw))
> ValueError: Invalid GPIO pin specified
> 
> 
> - checked with a LED on pin2 like this if GPIO2 works:
> root at OpenWrt:~# cd /sys/class/gpio/
> root at OpenWrt:/sys/class/gpio# ls
> export      gpiochip0   gpiochip32  gpiochip64  unexport
> root at OpenWrt:/sys/class/gpio# echo 2 > export
> root at OpenWrt:/sys/class/gpio# ls
> export      gpio2       gpiochip0   gpiochip32  gpiochip64  unexport
> root at OpenWrt:/sys/class/gpio# cd gpio2
> root at OpenWrt:/sys/devices/platform/10000000.palmbus/10000600.gpio/gpiochip0/gpio/gpio2# echo "out" > direction
> root at OpenWrt:/sys/devices/platform/10000000.palmbus/10000600.gpio/gpiochip0/gpio/gpio2# cat value
> 0
> root at OpenWrt:/sys/devices/platform/10000000.palmbus/10000600.gpio/gpiochip0/gpio/gpio2# echo 1 > value
> 
> - redone previous step with no changes in error output.
> 
> what am i missing?
> 
> Thanks for comments, Ivan Hörler
> _______________________________________________
> openwrt-devel mailing list
> openwrt-devel at lists.openwrt.org
> https://lists.openwrt.org/mailman/listinfo/openwrt-devel

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