Adding support for new hardware¶
This page will give a short overview on how to add support for new hardware to Gluon.
Having an ath9k (or ath10k) based WLAN adapter is highly recommended, although other chipsets may also work. VAP (multiple SSID) support is a requirement. At the moment, Gluon’s scripts can’t handle devices without WLAN adapters (although such environments may also be interesting, e.g. for automated testing in virtual machines).
The vast majority of devices with ath9k WLAN uses the ar71xx target of LEDE. If the hardware you want to add support for is also ar71xx, adding a new profile is enough.
Profiles are defined in
targets/* in a shell-based DSL (so common shell
commands syntax like
if can be used.
device command is used to define an image build for a device. It takes
two or three parameters.
The first parameter defines the Gluon profile name, which is used to refer to the device and is part of the generated image name. The profile name must be same as the output of the following command (on the target device), so the autoupdater can work:
lua -e 'print(require("platform_info").get_image_name())'
The second parameter defines the name of the image files generated by LEDE. Usually,
it is also the LEDE profile name; for devices that still use the old image build
code, a third parameter with the LEDE profile name can be passed. The profile names
can be found in the image Makefiles in
device tp-link-tl-wr1043n-nd-v1 tl-wr1043nd-v1 device alfa-network-hornet-ub hornet-ub HORNETUB
Suffixes and extensions¶
By default, image files are expected to have the extension
.bin. In addition,
the images generated by LEDE have a suffix before the extension that defaults to
This can be changed using the
sysupgrade commands, either at
the top of the file to set the defaults for all images, or for a single image. There
are three forms with 0 to 2 arguments (all work with
sysupgrade as well):
factory SUFFIX .EXT factory .EXT factory
When only an extension is given, the default suffix is retained. When no arguments are given, this signals that no factory (or sysupgrade) image exists.
Sometimes multiple models use the same LEDE images. In this case, the
command can be used to create symlinks and additional entries in the autoupdater
manifest for the alternative models.
On targets without per-device rootfs support in LEDE, the commands described above
can’t be used. Instead,
sysupgrade_image are used:
factory_image PROFILE IMAGE .EXT sysupgrade_image PROFILE IMAGE .EXT
Again, the profile name must match the value printed by the aforementioned Lua command. The image name must match the part between the target name and the extension as generated by LEDE and is to be omitted when no such part exists.
packages command takes an arbitrary number of arguments. Each argument
defines an additional package to include in the images in addition to the default
package sets defined by LEDE. When a package name is prefixed by a minus sign, the
packages are excluded instead.
packages command may be used at the top of a target definition to modify
the default package list for all images, or just for a single device (when the
target supports per-default rootfs).
config command allows to add arbitary target-specific LEDE configuration
to be emitted to
On devices with multiple WLAN adapters, care must also be taken that the primary MAC address is
/lib/gluon/core/sysconfig/primary_mac should contain the MAC address which
can be found on a label on most hardware; if it does not,
gluon-core might need a fix. (There have also been cases in which the address was incorrect
even on devices with only one WLAN adapter, in these cases a LEDE bug was the cause).
Adding support for new hardware targets¶
Adding a new target is much more complex than adding a new profile. There are two basic steps required for adding a new target:
One package that may need adjustments for new targets is
libplatforminfo (to be found in
If the new platform works fine with the definitions found in
default.c, nothing needs to be done. Otherwise,
create a definition for the added target or subtarget, either by symlinking one of the files in the
directory, or adding a new source file.
On many targets, Gluon’s network setup scripts (mainly in the package
won’t run correctly without some adjustments, so better double check that everything is fine there (and the files
/lib/gluon/core/sysconfig/ contain sensible values).
Build system support¶
A definition for the new target must be created under
targets, and it must be added
GluonTarget macro takes one to three arguments:
the target name, the Gluon subtarget name (if the target has subtargets), and the
LEDE subtarget name (if it differs from the Gluon subtarget). The third argument
can be used to define multiple Gluon targets with different configuration for the
same LEDE target, like it is done for the
After this, is should be sufficient to call
make GLUON_TARGET=<target> to build the images for the new target.