I suggest you start by using the latest CentOS 7, 1810 (based on RHEL
7.6). Anything older isn’t supported and most likely won’t work with any 3rd-party kernel drivers.
Also, which wifi driver do you want? There are many. Try looking at the output of ‘lspci’ to get hardware name.
Hi,
I use the wifi adaptor, Edimax AC1200, and its driver can be downloaded from ‘http://www.edimax.com.tw/edimax/download/download/data/edimax/tw/download/for_home/wireless_adapters/wireless_adapters_ac1200_dual-band/ew-7822ulc’.
I fail to compile its GPL Source Code on CentOS 7.4.
Where to get its rpm drivers, or how to compile its GPL Source Code?
Thanks
Regards
Andrew
At 2019-05-13 22:53:02, “Jonathan Billings” wrote:
Looks like you’ve found the only official source code.
It looks like someone else has (unofficial) code here:
It isn’t a driver supported by the CentOS kernel, nor any 3rd-party repositories that I know of. You’ll either have to get it to work yourself or use a newer kernel (which isn’t something supported on CentOS, but provided by 3rd party repos such as elrepo.org.)
Looking at the source code, it seems to provide some version of realtek driver.
Since you run CentOS 7.4 it may be a good time to upgrade to current 7.6
release and see if it already supports your device.
Simon
I’m generally not willing to package these Realtek sources for Enterprise Linux as the code is often heavily dependant upon kernel versioning with lots of conditionals. This approach simply does not work on RHEL (or CentOS), where for example el7 uses a nominal 3.10.0 kernel but has a wifi stack that is backported from linux-4.14. For these Realtek drivers to be properly supported on RHEL (and CentOS), Realtek need to perform RHEL versioning checks (RHEL_MAJOR and RHEL_MINOR) in addition to their kernel versioning checks.
My advice – if Realtek isn’t prepared to support the device on RHEL (or CentOS), purchase an adapter that is natively supported.
Yeah, sorry, I wasn’t volunteering you to support this, but rather suggesting to the original poster that they might have better luck building it against an elrepo kernel than a CentOS kernel.
I appreciate all the time and effort ELrepo puts into providing packages.
No problem, and you are absolutely spot on that these drivers will be far easier to build against a vanilla kernel than a heavily backported RHEL/CentOS distro kernel.
Still, if it were me, for the sake of $20 I’d rather go buy something that’s natively supported out of the box than spend the next 5-10 years constantly wrestling with unsupported code.
which wifi adapter does CentOS 7.4 support?
Could CentOS give a list of those supported wifi adapters?
Thanks!
Regards
Andrew
At 2019-05-15 00:16:59, “Phil Perry” wrote:
It’s CentOS 7. 4 was just a roll-up update from a couple years ago, you should run “yum update” to stay current.
Could CentOS give a list of those supported wifi adapters?
That would be the rhel 7 hardware compatibility list. Sadly, they don’t sort it by device type so it can be ungainly to search.
9 thoughts on - Where To Find Wifi Driver
I suggest you start by using the latest CentOS 7, 1810 (based on RHEL
7.6). Anything older isn’t supported and most likely won’t work with any 3rd-party kernel drivers.
Also, which wifi driver do you want? There are many. Try looking at the output of ‘lspci’ to get hardware name.
Hi,
I use the wifi adaptor, Edimax AC1200, and its driver can be downloaded from ‘http://www.edimax.com.tw/edimax/download/download/data/edimax/tw/download/for_home/wireless_adapters/wireless_adapters_ac1200_dual-band/ew-7822ulc’.
I fail to compile its GPL Source Code on CentOS 7.4.
Where to get its rpm drivers, or how to compile its GPL Source Code?
Thanks
Regards
Andrew
At 2019-05-13 22:53:02, “Jonathan Billings” wrote:
Looks like you’ve found the only official source code.
It looks like someone else has (unofficial) code here:
https://github.com/abperiasamy/rtl8812AU_8821AU_linux
It isn’t a driver supported by the CentOS kernel, nor any 3rd-party repositories that I know of. You’ll either have to get it to work yourself or use a newer kernel (which isn’t something supported on CentOS, but provided by 3rd party repos such as elrepo.org.)
Looking at the source code, it seems to provide some version of realtek driver.
Since you run CentOS 7.4 it may be a good time to upgrade to current 7.6
release and see if it already supports your device.
Simon
I’m generally not willing to package these Realtek sources for Enterprise Linux as the code is often heavily dependant upon kernel versioning with lots of conditionals. This approach simply does not work on RHEL (or CentOS), where for example el7 uses a nominal 3.10.0 kernel but has a wifi stack that is backported from linux-4.14. For these Realtek drivers to be properly supported on RHEL (and CentOS), Realtek need to perform RHEL versioning checks (RHEL_MAJOR and RHEL_MINOR) in addition to their kernel versioning checks.
My advice – if Realtek isn’t prepared to support the device on RHEL (or CentOS), purchase an adapter that is natively supported.
Yeah, sorry, I wasn’t volunteering you to support this, but rather suggesting to the original poster that they might have better luck building it against an elrepo kernel than a CentOS kernel.
I appreciate all the time and effort ELrepo puts into providing packages.
No problem, and you are absolutely spot on that these drivers will be far easier to build against a vanilla kernel than a heavily backported RHEL/CentOS distro kernel.
Still, if it were me, for the sake of $20 I’d rather go buy something that’s natively supported out of the box than spend the next 5-10 years constantly wrestling with unsupported code.
which wifi adapter does CentOS 7.4 support?
Could CentOS give a list of those supported wifi adapters?
Thanks!
Regards
Andrew
At 2019-05-15 00:16:59, “Phil Perry” wrote:
It’s CentOS 7. 4 was just a roll-up update from a couple years ago, you should run “yum update” to stay current.
Could CentOS give a list of those supported wifi adapters?
That would be the rhel 7 hardware compatibility list. Sadly, they don’t sort it by device type so it can be ungainly to search.