Linux on the Jornada 720 - Status

It is really great that someone finally made sound available in Linux. Thank you for this!
Awesome work.

You can get the latest Kernel and Modules here: http://www.sp-net.at/nextcloud/s/SQbqbX64QdZarop?path=%2Fkernel3.16...


Stefan

Thread pinned to the top of the H/PC Linux / Unix section

Stirling work there timob0 and Stefan, that is very impressive!

@Stefan When I connect this WaveLan card it does appear to be recognised as a device, and I believe I've used it in the past within windows CE.
https://i.imgur.com/k6WLL2V.jpg

@Joval I'm happy to buy another card though, to get things moving. Linksys WPC100 and WPC300 are readily available here in the UK but I'm not sure if those have the versions/firmwares you recommend?

PS: I'm so happy Linux on the Jornada is having a new lease of life, it's such a great concept!

Hi!
I forgot to add the orinoco_cs driver to the modules. I have done that and uploaded a new kernel + modules. Please download the new zImage and 3.16.81 folder!


Stefan

What would we do without you, Stefan?

No change here though, I copied zImage and 3.16.81 to /mnt/cf1. Popped the card in the jornada, booted up and run iwconfig but still not seeing the wifi device
I must have missed something. I've been trying to read this other thread but it's a lot of information to process

Edited by entozoon 2021-12-01 1:05 PM

You have to move the 3.16.81 folder to /lib/modules

Ah! Thanks again, I am getting further with it and managed to attempt a connection with

iwconfig eth0 ssid "Name" key sassword mode Managed

.
My WiFi isn't WEP though so I've gotta either create a WEP network, perhaps a Pi repeater, or somehow install wpa_supplicant

Edited by entozoon 2021-12-01 6:57 PM

I believe the lucent based cards are limited to WEP or Open given their wifi age (so wifi repeater ..with esp32 or such.. may be best option), whereas the MA401 and WPC11 are limited to WPA... all with 11Mbs throughput.

The Ambicom WL54 connects to all including WPA2 but the card is incredibly slow like 1-2 Mbs with present driver.

Connman really simpifies connecting as an option vs wpa_supplicant for the more secure WPA/WPA2 cards, otherwise with WEP only "/etc/network/interfaces" config file works well.

My 2 cents worth,

Joval

Hi Timob0! That is fantastic... what milestones you keep setting! You and Stefan!... The "Dynamic Duo Strikes Again!"
Looking forward to playing music and audiobooks too.

Do you think it will work with VNC? When I get it setup and working I will host a new downloadable disk image, including Stefan's Zram feature. Then I will see how it does with VNC.

Thanks again for the great convenience of Jornada-config!! You fellows are such treasures here at HPCFactor... can't say it enough!!

gratefully,

Joval

Hi!
VNC doesnt support audio. The only way to get audio from the host to the Jornada is over SSH. But this might be too much for the CPU.

Stefan

How about 'chips and guacamole'?

Perhaps an option... only the cpu(chip) knows if it can pass/parse the "Guacamole!" https://guacamole.apache.org/doc/gug/configuring-guacamole.html#vnc



Guten Appetit,

Joval

Hi Joval,

re. the VNC, maybe there is another option: there is something built in ALSA that provides a network audio driver with which can send the audio stream for replay on another machine independent of VNC or X11, if we manage to get the "sender" running on the PI and the receiver on the Jornada, you should be in business. Here's an article on how that could be done: Linux Audio Streaming

re. the Disk-Image, let's join forces there. I made one for myself which is based on your original one + new kernel + sound + jornada config + buttons + dosbox and which is clean in that it will boot into the config tool on first use (same as the PI does) to do the baseline config / disk resize and setup new user accounts. I personally don't use X11 and I like to create a non-root account for myself, that's why. I'll share a download link later today for you to review.

Kind regards
Timo

Hi Timo, and Thanks so much!

the guacamole site uses pulseaudio's network option... perhaps related approach, I will review the link above.

Congrat's on conquering the sound issue... it's been a long journey AFAIK.

Yes, I can't keep up with all the fantastic "improved developments/updates" you and Stefan magically conger up! Help on the Zram issue would be nice... I've had no luck so far but haven't tried latest. Might work with your newer image... I am a NOOB to swapping out new modules, etc. You two are the real hotshots... and very much appreciated!!

I have a few suggestions for minor tweaks to Jornada-config... slight parameter changes such as put contrast(8 increment) at top of list vs brightness (50 increment)... really helps with firefox and especialoly VNC (both run from RasPi not J720).

Maybe an entry for Rsync (included in present ) image to automate transfer of RasPi downloads to J720 /dev/hda1 for access in WinCe mode.

Yeah, Great!! Your help and guidance is always welcomed... and treasured by myself and many HPCFactorites!

gratefully,

Joval

on his J720_64Mb/DevuanBx/WPA/RasPi_Zero2/Firefox hybrid




Edited by joval 2021-12-02 4:33 PM

Hi Joval,

yes, the audio driver is a complete rewrite since the driver model changed quite significantly from Linux 2.x to 3.x. There were a couple of bits and pieces out there which we could use, but still had to dig through the hardware reference manuals to figure things out. Also there is a lot misleading information out there as for instance re. the used audio codec, many sites claim it's a UDA1341 but in reality - Stefan provided a mainboard photo - it's a 1344 that would act up when treated as 1341.

I believe the link I sent is even more low level than pulseaudio, seems to be a virtual sound card that sends data to the network concept. Haven't take a deep read though.

The ZRAM issue is related to the /etc/init.d/zram file being corrupted by the forums download function - it seems to add MS DOS style line endings. If you open it in a text editor on the Jornada and remove the "^M" characters from the line ends it will work just fine.

Please feel free to send over your suggestions for the config script, I'll be happy to integrate them.

Kind regards
Timo

Timo,

Amazed you figured out the codec issues, etc... a complete rewrite of the driver... impressed with your sleuthing abilities as well. Isn't this the Holy Grail so many have fought and died for now over the years? And you finally pulled it off!!! Congrats and a pat on the back, too.!!! I sense another Hpcfactor Nobel Prize here in the making for an outstanding achievement.

Anyone else agree???

Joval