[Q] kernal modifiying for rtl8187 support topic

Hi Developers

I have htc one X chrooted with linux kali using linux deploy app.
I want to modify the kernal in order to run rtl8187 as external adapter.
I downloaded the kernal source code from htc dev and extracted it I read many posts specially this post about modules http://forum.xda-developers.com/show....php?t=1455382 and but I am still dont know what to do. I followed these steps:

"• Install chroot Ubuntu or any other distribution on your Prime.
• chroot to the distribution
• wget the kernel source from Asus
• $ mkdir linux; cd linux
• unpack the kernel source here
• modify Makefile, Find the CFLAGS_MODULE line, add -fno-pic this flag to the end of the line: CFLAGS_MODULE = -fno-pic
• $ zcat /proc/config.gz > .config
• $ make oldconfig"
but I still dont know WHAT AM I DOING?
I am using stock rom 4.2.2 with stock kernal

these are my device vars

(bootloader) version: 0.5a
(bootloader) version-bootloader: 1.73.0000
(bootloader) version-baseband: 5.1204.167.31
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 4.20.415.4
(bootloader) product: endeavoru
(bootloader) platform: HBOOT-T30S
(bootloader) modelid: PJ4610000
(bootloader) cidnum: HTC__J15
(bootloader) battery-status: good
(bootloader) battery-voltage: 3800mV
(bootloader) devpower: 51
(bootloader) partition-layout: None
(bootloader) security: on
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: None
(bootloader) hbootpreupdate: 2
(bootloader) gencheckpt: 0


Khobaib