Today I needed to add a route on the android shell but was greated with “Invalid Argument” failures, there is no “-h”, no man page. So we will have to use the sourcecode. First of all the code is in /system/core/toolbox/route.c and it supports three types of argument.. route add default dev DEVICE route add default gw IP dev DEVICE route add -net IP netmask NETMASK gw IP
In the last month and next couple of weeks we were/are developing a similiar application for Android, iPhone and the Desktop (using Qt and Quick) with native technologies. I will focus on Android and Qt as both are Open Source and we were developing them in a similiar fashion with one designer and one developer interacting with each other. In both cases the application has a couple of views mainly consisting of a ListView of some sort and I will…
I am very excited by the Qt Quick technology and I have finally found a reason to use it and gain some experience with it and want to report from my first hours of exploring it. The first time I have seen Declarative UI was with Enlightenment and the Edje framework. I liked it so much that I registered Epicenter five years ago. The plan was to create a handheld framework using declarative UI. Now Qt Quick is not just…
This is a more calm rant of a post I have done earlier today and removed. Everytime I have to use a proprietary online shop to buy something the thing is just of very poor quality. One example of last year is Best Western, their bookingsystem was so bad, I had to book the Room through Yahoo Travel. So here is my top six of how you can make sure your online is failing (and how to fix it): Make…
Hi, with some more debugging and fun with wireshark scripting and looking a pretty obvious issue has been resolved. Now GPRS for us is actually using IP, UDP, NS (some simple address and type of the messages), BSSGP (protocol between SGSN and BSS) and for actual data there is LLC at the end of the BSSGP. The LLC is part of the BSSGP payload as TLV (Tag, Length, Value). I created a simple setup that worked. It involved getting the…
In the last couple of weeks I was traveling, searching a flat (a total failure so far), working on the Android Project, something else and of course GSM. I am having fun kicking another blackbox and try to figure out why it is catching fire and starts burning. We assume this is related to GPRS (that got recently added to OpenBSC thanks to the sponsoring of On Waves) and something within the UDP messages we send. Now the GPRS protocol…
Hmm… we just want to stream some video… giving android a MPEG TS stream does not work, giving it a HTTP Pantos, does not work, giving it a ms3u playlist segfaults the mediaserver. fun
I am now playing with the Android UI/Java Code and right now I have something really really simple to do. Over time I have a bunch of URIs to GET or POST and after it is done I want to have the status and the data. On top of that it should not block the UI thread. Android is using the HttpComponents of the apache project. The good thing about it is that Google was not reinventing the wheel, the…
Traditionally we have a struct gsm_lchan representing a logical channel. It has a given type based on the physical allocation (SDCCH, TCH/H, TCH/F), a given mode (traffic or signalling) and the trx and timeslot it is on. We also have a struct gsm_subscr representing a GSM Subscriber in our combined HLR/VLR. Whenever a Channel is used for a subscriber we are taking a reference count and assign the subscriber to the lchan. Whenever releasing the lchan we check the subscriber…
In previous lifes I have done development for Windows Mobile, the iPhone and now it is time to use Android. In general I had a negative bias towards Android because of the fact that they create an island on an island and have shown poor interaction with many upstream projects. The Poor The Android SDK GUI is really really poor, it is worse than my Opie SDK attempts I did within a couple of days. It is really schocking how…