[ptxdist] Fw: Re: Crosscompile a WIFI USB stick firmware with ptxdist

[ptxdist] Fw: Re: Crosscompile a WIFI USB stick firmware with ptxdist

[Dr. Patrick Langfeld]

Dear Thomas,
please call me Patrick :-)
Thank you very much for your quick response! I cant believe that it 
should be that simple - that would be really good news :-). (as my 
developer experience is that things are almost always more complicated 
than expected)

You mean it might be sufficient to copy the carl9170-1.fw to my targets 
destination /usr/local/lib/firmware eg.
mkdir /usr/local/lib/firmware
mv carl9170-1.fw /usr/local/lib/firmware
Am I right?

Is there a way that ptxdist can care for that to automize the job?
OK, I will have a look at the "4.3 Adding binary only files" chapter, 
page 45 of the "how to become a ptxdist guru" pdf. I think thats the 
one.
What I will also need are the packages for "wireless-tools" and 
"wpasupplicant".

in the userland (./ptx menuconfig) I already found the packages in
Networking Tools (cool)
<*> wireless tools
<*> wpa_supplicant
The latter has some subpackages
[ ] dbus control interface
[ ] AP mode
[ ] P2P
[ ] hostap
[ ] wext
[ ] ralink
[ ] nl80211
[ ] wired
[ ] roboswitch
[*] Install wpa_cli

Any idea what I will need as a minimum? Of course you will say that 
depends on what I want to do ;-)
I want a) my device to be a client and connecting with an access point 
and alternative b) a P2P connection with a PC (or multiple devices, each 
of them with a P2P connection to a dedicated PC).


Best regards
Patrick


------ Weitergeleitete Nachricht ------
Von: "Thomas Petazzoni" <thomas.petazzoni@free-electrons.com>
An: ptxdist@pengutronix.de; "Dr. Patrick Langfeld" 
<patrick.langfeld@optimeas.de>
Gesendet: 27.12.2012 15:01:40
Betreff: Re: [ptxdist] Crosscompile a WIFI USB stick firmware with 
ptxdist

Dear Dr. Patrick Langfeld,

On Thu, 27 Dec 2012 13:12:28 +0000, Dr. Patrick Langfeld wrote:

>  My kernel is already configured with the wireless LAN components for
>  80211 and the driver in Lan USB network adapter using the CARL9170,
>  which is the correct one for the DWA-160.
>
>  Now the hard part is to crosscompile the firmware carl9170-1.fw for 
>the
>  USB network adapter. The sources can be found in a git repository
>  https://github.com/chunkeey/carl9170fw.git

If you don't intend to do active development on this firmware, it's
probably easier to use a pre-built version of it, as available at
http://linuxwireless.org/en/users/Drivers/carl9170#Firmware_binary.

>  and come with an autogen.sh script file, which I attached for you to
>  have a look at.
>
>  Now I am wondering HOW TO PROCEED and implement the build process of
>  autogen.sh in ptxdist and which package type is appropriate. Is it a
>  ./ptx newpackage target or a src-cmake-prog as the autogen.sh makes 
>use
>  of cmake.
>  In the readme file is written, that to build the firmware one would 
>need
>  a SH-2 toolchain. Is this also true for cross-compilation? Do I really
>  need to build this toolchain first?

The firmware is the code that runs *inside* your Wifi chip, and
apparently this Wifi chip uses a SuperH 2 processor. So, regardless of
whether your embedded system uses a ARM processor, a x86 processor, or
something else, your USB Wifi device embeds a SH2 processor, and the
firmware is targeting this processor, not your main application
processor (ARM i.MX53 in your case).

So again, unless you need to make modifications to the firmware, I
would probably recommend to go with a pre-built version.

Best regards,

Thomas
--
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com


-- 
ptxdist mailing list
ptxdist@pengutronix.de

Re: [ptxdist] Fw: Re: Crosscompile a WIFI USB stick firmware with ptxdist

[Tim Sander]

Hi Patrick
> Is there a way that ptxdist can care for that to automize the job?
The quickest way might be to just copy rootfs from the ptxdist 
/usr/local/lib/ptxdist-<version>/rules/rootfs.make to your local rules and add
a install_alternative line of the firmware you have copied to projectroot 
directory tree in your ptxdist project dir.

The not so fast way would be adding you own package.

This is all documented in the ptxdist documentation.

Best regards
Tim

-- 
ptxdist mailing list
ptxdist@pengutronix.de