how to record an ir signal from an AC remote using LIRC in raspberry pi? -

i had used lirc of raspberry pi record , use ir signals of samsung tv remote. recording process fine. used this site reference.but unable record ir signals bluestar ac in same method. after 1-3 dots (not same number), irrecord exits following error message:

irrecord: not find gap.   irrecord: gap not found, can't continue 

then tried recording ac remote signals using mode2 , routing text file , manually modified lircd.conf file include raw code shown in link

how use irrecord 2ms timing instead of default 5ms?

but error that

irsend: command failed: send_once /etc/lirc/lircd.conf key_power    irsend: unknown remote : "/etc/lirc/lircd.conf" 

possibly lircd doesn't accept characters (e.g. slash) remote name. try changing the:

    name /etc/lirc/lircd.conf 

in .conf file different name (e.g. my_remote), invoke irsend like:

irsend send_once my_remote key_power