building wifi ac driver/module for BBB issue

8 views

Skip to first unread message

bern...@gmail.com

unread,

Aug 29, 2019, 3:23:38 PM8/29/19

to BeagleBoard

HI,

I use Beagle Bone Black (BBB) and Arch few days:

Linux BBB 5.2.10-2-ARCH #1 PREEMPT Tue Aug 27 13:54:27 UTC 2019 armv7l GNU/Linux

I would like to build driver/module for Realtek RLT8821CU WIFI AC dongle.

BBB has the same architecture as RPI armv7l/armhf so I thought I could use driver for RPI.

I found https://github.com/brektrou/rtl8821CU and adjusted for RPI. I've build it in the Rasbian environment (kernel 4.19.66-v7+) and works OK for my RPI2.

I have applied the same adjustments (marks green):

https://github.com/zebulon2/rtl8812au/commit/d80d907e84be6001edbc08f8f0d0b93be1538094

to BBB but unfortunately during building I receive:

gcc: error: -mfloat-abi=soft and -mfloat-abi=hard may not be used together

This is strange because in the makefile I have only:

EXTRA_CFLAGS += -mfloat-abi=hard

see the line 1180 of Makefile:

http://paste.ubuntu.com/p/KYw5YQBk3C/

(which worked fine for RPI).

What should I adjust in the Makefile (or somewhere else) to disable -mfloat-abi=soft?