User Notes

Take care not to set the frequency such that `iw info' command shows "(radar detection)" next to it. There are WiFi channels for which frame injection is banned by the law.
If using fixed transmission rate (as opposite to automatic selection by software), make sure the chosen bitrate is supported. Use iw phy and look for the "Bitrates" section in the output.
- For the 2.4 GHz band, supported bitrates usually are: 1, 2, 5.5, 11, 6, 9, 12, 18, 24, 36, 48, 54
- For the 5 GHz band, these are: 6, 9, 12, 18, 24, 36, 48, 54

Shortfalls

On RB433AH, with mac80211 packet injection, generator can do at most ~2500 pps (100 B frames) or no more than 25 Mbps (1500 B frames)
- Simultaneous, parallel sendmsg() writes do not improve the performance - my guess is an architectural problem in packet injection facility that would require deeper investigation down the kernel, the mac80211 layer and the ath9k driver
- A limited (in functionality) workaround would be to use the raw Ethernet or even UDP socket interface and rely on the Linux networking stack equipped with many layers of buffers
  - Would disable/degrade accurate control over frame timing, bitrate and ack

Name		Name	Last commit message	Last commit date
Latest commit History 75 Commits
doc		doc
lib		lib
.gitignore		.gitignore
Makefile		Makefile
README.markdown		README.markdown
cmd-packet.c		cmd-packet.c
cmd-packet.h		cmd-packet.h
cmd-ttftp.c		cmd-ttftp.c
cmd-ttftp.h		cmd-ttftp.h
dump.c		dump.c
dump.h		dump.h
fun.c		fun.c
generator.c		generator.c
generator.h		generator.h
interface.c		interface.c
interface.h		interface.h
parser.c		parser.c
parser.h		parser.h
rules.mk		rules.mk
schedule.c		schedule.c
schedule.h		schedule.h
stats.c		stats.c
stats.h		stats.h
sync.c		sync.c
sync.h		sync.h