modffi: Add special 'C' code for passing a callback function pointer.
modffi: Add special 'C' code for passing a callback function pointer.

jmarcelino/pycom-micropython,drrk/micropython,ericsnowcurrently/micropython,dhylands/micropython,henriknelson/micropython,orionrobots/micropython,adafruit/circuitpython,torwag/micropython,utopiaprince/micropython,omtinez/micropython,oopy/micropython,emfcamp/micropython,bvernoux/micropython,AriZuu/micropython,Peetz0r/micropython-esp32,pozetroninc/micropython,mpalomer/micropython,mhoffma/micropython,EcmaXp/micropython,adafruit/micropython,AriZuu/micropython,redbear/micropython,infinnovation/micropython,martinribelotta/micropython,praemdonck/micropython,paul-xxx/micropython,SungEun-Steve-Kim/test-mp,mgyenik/micropython,kerneltask/micropython,Timmenem/micropython,xuxiaoxin/micropython,redbear/micropython,puuu/micropython,tuc-osg/micropython,danicampora/micropython,ceramos/micropython,suda/micropython,xhat/micropython,feilongfl/micropython,ruffy91/micropython,ganshun666/micropython,xhat/micropython,KISSMonX/micropython,swegener/micropython,tuc-osg/micropython,cloudformdesign/micropython,chrisdearman/micropython,alex-march/micropython,oopy/micropython,mianos/micropython,dinau/micropython,methoxid/micropystat,galenhz/micropython,MrSurly/micropython,kostyll/micropython,stonegithubs/micropython,jlillest/micropython,Timmenem/micropython,paul-xxx/micropython,SHA2017-badge/micropython-esp32,matthewelse/micropython,micropython/micropython-esp32,alex-march/micropython,kerneltask/micropython,pramasoul/micropython,hiway/micropython,xhat/micropython,dxxb/micropython,TDAbboud/micropython,alex-march/micropython,TDAbboud/micropython,bvernoux/micropython,kostyll/micropython,cwyark/micropython,neilh10/micropython,dhylands/micropython,ChuckM/micropython,puuu/micropython,blmorris/micropython,omtinez/micropython,KISSMonX/micropython,SungEun-Steve-Kim/test-mp,SungEun-Steve-Kim/test-mp,tobbad/micropython,TDAbboud/micropython,vitiral/micropython,mgyenik/micropython,vriera/micropython,drrk/micropython,hosaka/micropython,stonegithubs/micropython,pozetroninc/micropython,misterdanb/micropython,supergis/micropython,rubencabrera/micropython,bvernoux/micropython,dinau/micropython,KISSMonX/micropython,EcmaXp/micropython,dmazzella/micropython,deshipu/micropython,HenrikSolver/micropython,drrk/micropython,praemdonck/micropython,oopy/micropython,mhoffma/micropython,cloudformdesign/micropython,aethaniel/micropython,ruffy91/micropython,trezor/micropython,noahwilliamsson/micropython,skybird6672/micropython,noahchense/micropython,paul-xxx/micropython,blazewicz/micropython,noahwilliamsson/micropython,trezor/micropython,neilh10/micropython,heisewangluo/micropython,ChuckM/micropython,mianos/micropython,toolmacher/micropython,vitiral/micropython,dmazzella/micropython,slzatz/micropython,noahchense/micropython,tralamazza/micropython,kostyll/micropython,dmazzella/micropython,infinnovation/micropython,chrisdearman/micropython,orionrobots/micropython,mianos/micropython,ganshun666/micropython,tobbad/micropython,hosaka/micropython,ChuckM/micropython,rubencabrera/micropython,cwyark/micropython,toolmacher/micropython,ericsnowcurrently/micropython,alex-march/micropython,pramasoul/micropython,warner83/micropython,kostyll/micropython,pozetroninc/micropython,MrSurly/micropython-esp32,MrSurly/micropython-esp32,lowRISC/micropython,martinribelotta/micropython,xuxiaoxin/micropython,suda/micropython,selste/micropython,Timmenem/micropython,blmorris/micropython,adamkh/micropython,pozetroninc/micropython,ahotam/micropython,heisewangluo/micropython,vriera/micropython,tralamazza/micropython,ceramos/micropython,PappaPeppar/micropython,dinau/micropython,ruffy91/micropython,MrSurly/micropython,noahwilliamsson/micropython,infinnovation/micropython,aethaniel/micropython,supergis/micropython,dinau/micropython,warner83/micropython,deshipu/micropython,ceramos/micropython,HenrikSolver/micropython,mhoffma/micropython,cnoviello/micropython,hiway/micropython,skybird6672/micropython,henriknelson/micropython,tuc-osg/micropython,puuu/micropython,PappaPeppar/micropython,mpalomer/micropython,warner83/micropython,cwyark/micropython,toolmacher/micropython,jimkmc/micropython,firstval/micropython,suda/micropython,ernesto-g/micropython,HenrikSolver/micropython,dhylands/micropython,PappaPeppar/micropython,rubencabrera/micropython,vriera/micropython,omtinez/micropython,neilh10/micropython,cwyark/micropython,Peetz0r/micropython-esp32,jimkmc/micropython,jimkmc/micropython,drrk/micropython,firstval/micropython,toolmacher/micropython,puuu/micropython,pfalcon/micropython,xhat/micropython,redbear/micropython,chrisdearman/micropython,lowRISC/micropython,galenhz/micropython,deshipu/micropython,henriknelson/micropython,utopiaprince/micropython,xuxiaoxin/micropython,EcmaXp/micropython,TDAbboud/micropython,Vogtinator/micropython,adafruit/circuitpython,matthewelse/micropython,blazewicz/micropython,orionrobots/micropython,cloudformdesign/micropython,SHA2017-badge/micropython-esp32,noahchense/micropython,misterdanb/micropython,misterdanb/micropython,pramasoul/micropython,slzatz/micropython,mpalomer/micropython,blazewicz/micropython,methoxid/micropystat,adafruit/circuitpython,jlillest/micropython,tuc-osg/micropython,xuxiaoxin/micropython,galenhz/micropython,micropython/micropython-esp32,alex-robbins/micropython,trezor/micropython,drrk/micropython,slzatz/micropython,tuc-osg/micropython,heisewangluo/micropython,skybird6672/micropython,warner83/micropython,ruffy91/micropython,praemdonck/micropython,matthewelse/micropython,utopiaprince/micropython,Vogtinator/micropython,aethaniel/micropython,mianos/micropython,lowRISC/micropython,mhoffma/micropython,mgyenik/micropython,hiway/micropython,micropython/micropython-esp32,jimkmc/micropython,firstval/micropython,ryannathans/micropython,MrSurly/micropython,kostyll/micropython,KISSMonX/micropython,blazewicz/micropython,feilongfl/micropython,ahotam/micropython,matthewelse/micropython,vitiral/micropython,danicampora/micropython,dinau/micropython,vitiral/micropython,kerneltask/micropython,torwag/micropython,toolmacher/micropython,swegener/micropython,slzatz/micropython,feilongfl/micropython,cloudformdesign/micropython,Timmenem/micropython,praemdonck/micropython,swegener/micropython,xhat/micropython,alex-robbins/micropython,xyb/micropython,SHA2017-badge/micropython-esp32,emfcamp/micropython,skybird6672/micropython,danicampora/micropython,blazewicz/micropython,aethaniel/micropython,vitiral/micropython,hosaka/micropython,puuu/micropython,orionrobots/micropython,tralamazza/micropython,SungEun-Steve-Kim/test-mp,mpalomer/micropython,Peetz0r/micropython-esp32,danicampora/micropython,dhylands/micropython,swegener/micropython,SungEun-Steve-Kim/test-mp,slzatz/micropython,tobbad/micropython,supergis/micropython,adafruit/circuitpython,stonegithubs/micropython,turbinenreiter/micropython,adafruit/circuitpython,tdautc19841202/micropython,pozetroninc/micropython,SHA2017-badge/micropython-esp32,tralamazza/micropython,blmorris/micropython,neilh10/micropython,ganshun666/micropython,MrSurly/micropython,utopiaprince/micropython,xyb/micropython,ernesto-g/micropython,lowRISC/micropython,dxxb/micropython,jlillest/micropython,mgyenik/micropython,pfalcon/micropython,HenrikSolver/micropython,jmarcelino/pycom-micropython,alex-robbins/micropython,ChuckM/micropython,EcmaXp/micropython,ryannathans/micropython,galenhz/micropython,noahwilliamsson/micropython,xuxiaoxin/micropython,lbattraw/micropython,selste/micropython,lbattraw/micropython,torwag/micropython,tdautc19841202/micropython,dxxb/micropython,cwyark/micropython,MrSurly/micropython-esp32,SHA2017-badge/micropython-esp32,jmarcelino/pycom-micropython,emfcamp/micropython,ceramos/micropython,emfcamp/micropython,ericsnowcurrently/micropython,alex-robbins/micropython,xyb/micropython,turbinenreiter/micropython,dhylands/micropython,MrSurly/micropython,lbattraw/micropython,Timmenem/micropython,cnoviello/micropython,turbinenreiter/micropython,misterdanb/micropython,noahchense/micropython,xyb/micropython,blmorris/micropython,ericsnowcurrently/micropython,omtinez/micropython,adafruit/micropython,MrSurly/micropython-esp32,danicampora/micropython,selste/micropython,cloudformdesign/micropython,ericsnowcurrently/micropython,hiway/micropython,tdautc19841202/micropython,chrisdearman/micropython,adamkh/micropython,supergis/micropython,paul-xxx/micropython,aethaniel/micropython,infinnovation/micropython,methoxid/micropystat,ruffy91/micropython,hosaka/micropython,pfalcon/micropython,PappaPeppar/micropython,trezor/micropython,tdautc19841202/micropython,ahotam/micropython,bvernoux/micropython,Vogtinator/micropython,adafruit/circuitpython,blmorris/micropython,supergis/micropython,matthewelse/micropython,rubencabrera/micropython,ryannathans/micropython,mpalomer/micropython,vriera/micropython,Peetz0r/micropython-esp32,firstval/micropython,infinnovation/micropython,Peetz0r/micropython-esp32,adamkh/micropython,AriZuu/micropython,HenrikSolver/micropython,noahwilliamsson/micropython,pfalcon/micropython,mianos/micropython,neilh10/micropython,ganshun666/micropython,martinribelotta/micropython,oopy/micropython,jlillest/micropython,micropython/micropython-esp32,jlillest/micropython,cnoviello/micropython,ganshun666/micropython,mgyenik/micropython,alex-robbins/micropython,deshipu/micropython,torwag/micropython,tobbad/micropython,orionrobots/micropython,jimkmc/micropython,feilongfl/micropython,praemdonck/micropython,mhoffma/micropython,turbinenreiter/micropython,selste/micropython,EcmaXp/micropython,firstval/micropython,TDAbboud/micropython,adamkh/micropython,ahotam/micropython,AriZuu/micropython,martinribelotta/micropython,pfalcon/micropython,pramasoul/micropython,chrisdearman/micropython,PappaPeppar/micropython,turbinenreiter/micropython,suda/micropython,ceramos/micropython,dmazzella/micropython,kerneltask/micropython,misterdanb/micropython,oopy/micropython,AriZuu/micropython,micropython/micropython-esp32,rubencabrera/micropython,adafruit/micropython,dxxb/micropython,redbear/micropython,tdautc19841202/micropython,martinribelotta/micropython,deshipu/micropython,MrSurly/micropython-esp32,bvernoux/micropython,adafruit/micropython,hosaka/micropython,ryannathans/micropython,alex-march/micropython,tobbad/micropython,lbattraw/micropython,ernesto-g/micropython,swegener/micropython,cnoviello/micropython,torwag/micropython,selste/micropython,stonegithubs/micropython,omtinez/micropython,henriknelson/micropython,ernesto-g/micropython,suda/micropython,warner83/micropython,cnoviello/micropython,noahchense/micropython,kerneltask/micropython,emfcamp/micropython,matthewelse/micropython,adafruit/micropython,stonegithubs/micropython,dxxb/micropython,paul-xxx/micropython,lowRISC/micropython,utopiaprince/micropython,trezor/micropython,jmarcelino/pycom-micropython,galenhz/micropython,hiway/micropython,ahotam/micropython,redbear/micropython,ryannathans/micropython,adamkh/micropython,methoxid/micropystat,ChuckM/micropython,KISSMonX/micropython,skybird6672/micropython,feilongfl/micropython,methoxid/micropystat,Vogtinator/micropython,pramasoul/micropython,Vogtinator/micropython,vriera/micropython,xyb/micropython,lbattraw/micropython,jmarcelino/pycom-micropython,heisewangluo/micropython,henriknelson/micropython,ernesto-g/micropython,heisewangluo/micropython