Thank @Chaitanya, @Green for your useful information :D Best, Duy Tai Nguyen 2015-06-09 2:34 GMT+07:00 Krishna Chaitanya <chaitanya.mgit@xxxxxxxxx>: > On Mon, Jun 8, 2015 at 10:40 PM, Alexis Green <agreen@xxxxxxxxxxxx> wrote: >> >> You should build mac80211 as module instead of built-in driver and >> "make modules" instead of full make. This way you'll be just >> rebuilding mac80211.ko instead of the whole thing. >> >> On Mon, Jun 8, 2015 at 2:39 AM, Duy Tai Nguyen <duytai.cse@xxxxxxxxx> wrote: >> > Hi, >> > >> > I want to inject particular data into beacon frame in Android device. >> > I found two approaches: >> > 1. Write loadable kernel module. >> > 2. Modify MAC80211 subsystem >> > In the first approach, I found that I could not include directly >> > source code from MAC80211 sub system in folder /net/mac80211/. Thus, I >> > used the second approach, but, every time I change any line of source >> > code, it takes 30 minutes to build zImage then install new kernel in >> > my Android device. Finally, I was stuck. >> > Therefore, my questions are: >> > 1. Is it right approach to modify MAC80211 subsystem? >> > 2. Are there any faster approach to modify MAC80211 and test source code? >> > 3. I am curious about the way you write code and test MAC80211. Could >> > you explain in details? > > The way i do it is, as below: > > 1) First time compile the full kernel. With mac80211=m > 2) Next time: after changing source : > make modules M=net/mac80211 > make modules_install M=net/mac80211 > > modprobe -v mac80211 -r > modprobe -v mac80211 > 3) I normally use mac80211_hwsim to test the mac80211 code. > Refer: https://wireless.wiki.kernel.org/en/users/drivers/mac80211_hwsim > In that case: > > modprobe -v mac80211_hwsim -r > modprobe -v mac80211_hwsim -- ----------------------------------------------------------------------------------------------------------------- Nguyen Duy Tai Ym: kimjiwoo741 Phone: +841676919422 Faculty of Computer Science and Engineering. University of Technology HCMC. ----------------------------------------------------------------------------------------------------------------- -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
