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Add troubleshooting section to README

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Max Görner 2021-01-19 00:04:11 +01:00
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README.md
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@ -18,7 +18,9 @@ Build confirmed on:
Linux version 5.4.0-4-amd64 (debian-kernel@lists.debian.org) (gcc version 9.2.1 20200203 (Debian 9.2.1-28)) #1 SMP Debian 5.4.19-1 (2020-02-13) Linux version 5.4.0-4-amd64 (debian-kernel@lists.debian.org) (gcc version 9.2.1 20200203 (Debian 9.2.1-28)) #1 SMP Debian 5.4.19-1 (2020-02-13)
``` ```
## Simple Usage ## Using and Installing the Driver
### Simple Usage
In order to make direct use of the driver it should suffice to build the driver In order to make direct use of the driver it should suffice to build the driver
with `make` and to load it with `insmod 88x2bu.ko`. This will allow you with `make` and to load it with `insmod 88x2bu.ko`. This will allow you
@ -27,13 +29,25 @@ to use the driver directly without changing your system persistently.
It might happen that your system freezes instantaneously. Ensure to not loose It might happen that your system freezes instantaneously. Ensure to not loose
important work by saving and such beforehand. important work by saving and such beforehand.
## DKMS installation ### DKMS installation
If you want to have the driver available at startup, it will be convenient to If you want to have the driver available at startup, it will be convenient to
register it in DKMS. An executable explanation of how to do so can be found in register it in DKMS. An executable explanation of how to do so can be found in
the script `deploy.sh`. Since registering a kernel module in DKMS is a major the script `deploy.sh`. Since registering a kernel module in DKMS is a major
intervention, only execute it if you understand what the script does. intervention, only execute it if you understand what the script does.
### Known Problems
Some users reported problems due to `Unkown symbol in module`. This can be
caused by old deployments of the driver still being present in the systems
directories. One solution reported was to forcefully remove all old driver
modules:
sudo dkms remove rtl88x2bu/5.8.7.4 --all
find /lib/modules -name cfg80211.ko -ls
sudo rm -f /lib/modules/*/updates/net/wireless/cfg80211.ko
## Raspberry Pi Access Point ## Raspberry Pi Access Point
```bash ```bash