RE: FM RDS data
I'm thinking of a small usage, a app that found the freest frequency (by listening fm with the transmitter) and change the frequency of transmitted music to the found one and send an rds signal by the transmitter, so you don't have to change frequency on your car receiver (or everything else). Great to hear this, I was thinking of trying something similar when I had some time. The FM transmitter also has a basic receiver built in (afair from the spec sheet), i.e. not the one that is built into the Bluetooth chip that is used to listen to the radio, which I imagine is designed for just such a usage (I think it just returns a signal level for each frequency, but I'd have to take another look at the sheet to be sure) does anyone know if we can access this at the moment? Cheers, Simon -Original Message- From: maemo-developers-boun...@maemo.org [mailto:maemo-developers-boun...@maemo.org] On Behalf Of Martin Grimme Sent: 07 January 2010 07:23 To: Benoît HERVIER Cc: maemo-developers@maemo.org; Aldon Hynes Subject: Re: FM RDS data Hi, yes, RDS PS and RDS RT can be modified. See http://wiki.maemo.org/Documentation/Maemo_5_Developer_Guide/Us ing_Multimedia_Components/FM_Transmitter_API_Usage Martin 2010/1/7, Benoît HERVIER kher...@khertan.net: About FM and RDS modifying RDS signal transmited from the tablet is possible ? I'm thinking of a small usage, a app that found the freest frequency (by listening fm with the transmitter) and change the frequency of transmitted music to the found one and send an rds signal by the transmitter, so you don't have to change frequency on your car receiver (or everything else). I know that fm transmitter emit an rds signal ... but can that be changed ? Does there is documentation about the fm transmitter and receiver somewhere on Maemo ? Thanks a lot 2010/1/6 Martin Grimme martin.gri...@gmail.com Hi, the FM receiver's interface for RDS is exposed via sysfs. So any application can read RDS data from it. The frequency bands the receiver is capable of are US/EUR (87.5 - 108.00 MHz) and Japan (don't remeber, but I think starts somewhere at 70 MHz). A region switch in the driver (sysfs-Interface again but as root) switches between the frequency bands. Martin 2010/1/6, Aldon Hynes aldon.hy...@orient-lodge.com: I have been approached by a person interested in sending data from a sensor via FM to a cellphone which would in term transmit this data to the Internet. I am interested in figuring out if this is something that could be done with an N900. With that, I have a few specific questions: First, can anyone point me to information about how to programatically receive RDS data? I've read that the FM receive app is supposed to do that, but I haven't managed to receive RDS data that way yet, and I don't have the source code. Second, does anyone have any idea what frequencies the FM receiver can tune into? The programs I've seen have focused on the traditional commercial FM band, 88 Mhz to 106 Mhz. Can the FM receiver tune in higher or lower frequencies? If so, what is the real frequency range of the FM Receiver. Third, are there other data formats that can easily be sent and/or received from the Nokia phone? If so, can people point me to any of these other data formats? Any help you can provide would be greatly appreciated. Aldon ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers -- Benoît HERVIER - http://khertan.net/ ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: FM RDS data
Hi, I would imagine that the signal strength can be read using V4L2 interface on /dev/radio0. I was able to set frequency with this interface and IIRC I also read signal strength from it already at a time when I was thinking that /dev/radio0 was the FM _receiver_. Martin 2010/1/7, Simon Pickering s.g.picker...@bath.ac.uk: I'm thinking of a small usage, a app that found the freest frequency (by listening fm with the transmitter) and change the frequency of transmitted music to the found one and send an rds signal by the transmitter, so you don't have to change frequency on your car receiver (or everything else). Great to hear this, I was thinking of trying something similar when I had some time. The FM transmitter also has a basic receiver built in (afair from the spec sheet), i.e. not the one that is built into the Bluetooth chip that is used to listen to the radio, which I imagine is designed for just such a usage (I think it just returns a signal level for each frequency, but I'd have to take another look at the sheet to be sure) does anyone know if we can access this at the moment? Cheers, Simon -Original Message- From: maemo-developers-boun...@maemo.org [mailto:maemo-developers-boun...@maemo.org] On Behalf Of Martin Grimme Sent: 07 January 2010 07:23 To: Benoît HERVIER Cc: maemo-developers@maemo.org; Aldon Hynes Subject: Re: FM RDS data Hi, yes, RDS PS and RDS RT can be modified. See http://wiki.maemo.org/Documentation/Maemo_5_Developer_Guide/Us ing_Multimedia_Components/FM_Transmitter_API_Usage Martin 2010/1/7, Benoît HERVIER kher...@khertan.net: About FM and RDS modifying RDS signal transmited from the tablet is possible ? I'm thinking of a small usage, a app that found the freest frequency (by listening fm with the transmitter) and change the frequency of transmitted music to the found one and send an rds signal by the transmitter, so you don't have to change frequency on your car receiver (or everything else). I know that fm transmitter emit an rds signal ... but can that be changed ? Does there is documentation about the fm transmitter and receiver somewhere on Maemo ? Thanks a lot 2010/1/6 Martin Grimme martin.gri...@gmail.com Hi, the FM receiver's interface for RDS is exposed via sysfs. So any application can read RDS data from it. The frequency bands the receiver is capable of are US/EUR (87.5 - 108.00 MHz) and Japan (don't remeber, but I think starts somewhere at 70 MHz). A region switch in the driver (sysfs-Interface again but as root) switches between the frequency bands. Martin 2010/1/6, Aldon Hynes aldon.hy...@orient-lodge.com: I have been approached by a person interested in sending data from a sensor via FM to a cellphone which would in term transmit this data to the Internet. I am interested in figuring out if this is something that could be done with an N900. With that, I have a few specific questions: First, can anyone point me to information about how to programatically receive RDS data? I've read that the FM receive app is supposed to do that, but I haven't managed to receive RDS data that way yet, and I don't have the source code. Second, does anyone have any idea what frequencies the FM receiver can tune into? The programs I've seen have focused on the traditional commercial FM band, 88 Mhz to 106 Mhz. Can the FM receiver tune in higher or lower frequencies? If so, what is the real frequency range of the FM Receiver. Third, are there other data formats that can easily be sent and/or received from the Nokia phone? If so, can people point me to any of these other data formats? Any help you can provide would be greatly appreciated. Aldon ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers -- Benoît HERVIER - http://khertan.net/ ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Drag Drop on GTK + Maemo 5 (was: Re: [pymaemo] DnD on N900)
El mié, 06-01-2010 a las 19:44 -0400, Anderson Lizardo escribió: [I'm CC'ing maemo-developers as it is clearly not a Python specific issue; see below for details] On Wed, Jan 6, 2010 at 2:11 PM, Jeffrey Barish jeff_bar...@earthlink.net wrote: Well, it took a little more than a few days, but here is a test program. It works on Ubuntu and N810, but not N900. Well, I tested your example on Maemo and Ubuntu, and indeed the drag drop only worked on Ubuntu. Additionally, this error is shown on console: /tmp/dndtest.py:77: Warning: g_object_set_data_full: assertion `G_IS_OBJECT (object)' failed gtk.main() So I went further and translated your example to C (please note I'm no GTK expert, I'm only trying to help debugging the problem). And the same behavior is presented: the drag does not work and this message is shown on console: dndtest[9349]: GLIB CRITICAL ** GLib-GObject - g_object_set_data_full: assertion `G_IS_OBJECT (object)' failed That means the problem is not related to Python or PyGTK at all, but some GTK limitation/bug on Maemo 5. There is no drag 'n drop in Maemo GTK+. This has been deliberately disabled. A stacktrace on the critical warning would be useful to find out the cause. Claudio ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Storing passwords on Maemo 5
On Wed, Jan 6, 2010 at 5:06 PM, Iñigo Illán kodep...@terra.es wrote: Having a device oriented mainly to internet but not having a framework for storing passwords in a safe way seems a huge lack. Have anyone any suggestion of how to save passwords in a safe way in Maemo5? Agreed. A password storage service, such as kwalletd or gnome-keyring, for single-sign-on would be great. If neither is ported or none exists, a service that provides a DBUS api for password storage would be quite useful. As a side note, I'm writing a simple app for password management, it uses the Qt Cryptographic Architecture ( http://delta.affinix.com/qca/ ) for the encryption with OpenPGP keys. The QCA library isn't available in the Maemo repos, but porting it seemed to be just a matter of compilation (and perhaps optification is required). The lib could easily be used for this kind of service as well. -- Tatu Lahtela laht...@iki.fi ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Proposal: Sharing plugin to call command-line apps (e.g. photo sharing via SCP)
Hello Alan, b0nc3 and Tuomas! 2010/1/5 Qole qole.tab...@gmail.com: On Sat, Jan 2, 2010 at 7:53 AM, Thomas Perl th.p...@gmail.com wrote: I've been thinking of creating a SCP sharing plugin for uploading photos to a web server, but then thought that a generic command-line sharing plugin would be even more universal and useful. [...] What a MARVELOUS idea! I have created a project on garage: https://garage.maemo.org/projects/sharing-cli/ Would be nice if all of you who are interested can join this group so we can collaboratively implement this plugin. I've set up the git repository (although no commits yet) and am waiting for the mailing list to be activated. If you coupled this with an Advanced Mode in the File manager that let you show all files and browse all directories, it would be The Best Idea Evar! This should probably go into Petrovich - we have control over it (it's open source), and it integrates the Sharing functionality already. Greetings, Thomas ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
How to access geotag information?
Hi, i am planning to add a feature to Maep so that it displays small thumbnails of geotagged media data. How do i access geotags? I suppose the correct way to access any media files is to go via tracker. Are there any examples to request geoinformation from tracker? A little googling reveals many pages saying that tracker doesn't index geotags. Is this true? What is the correct way to get geotags of all media stored on the device? It sure doesn't make much sense to ask tracker for a list of all media and than try to extract geotags from them. This would take forever on a big media collection. Regards, Till ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: oFono
On Thursday 07 January 2010 04:09:46 you wrote: ke, 2010-01-06 kello 15:26 +0100, ext Jeff Moe kirjoitti: On Wednesday 06 January 2010 08:25:15 you wrote: Hi, I wonder if you really need a laptop for making calls. The program pnatd gives you tty to a modem where you can send AT commands. I'm using it to send USSD codes. Very cool. That looks like it may work, actually, at least for within Maemo. Can you give me a hint as to how to use it though? You should use the isimodem driver in oFono. It is specifically made to support Nokia modems, such as the one on N900. I've been told, and tried my self, and it doesn't work on the N900. That said, you know far more about it! Do you have a sample modem.conf for N900? And other clues would be appreciated! Thanks, -Jeff ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: oFono
to, 2010-01-07 kello 13:48 +0100, ext Jeff Moe kirjoitti: You should use the isimodem driver in oFono. It is specifically made to support Nokia modems, such as the one on N900. I've been told, and tried my self, and it doesn't work on the N900. It _should_ work out of the box on the N900. In fact, I did some quick packaging of the 0.15 release and just pushed ofono in Fremantle extras-devel. So let's see... There is some jumping through hoops required to get Phonet over USB working that would allow you to use oFono on the desktop with N900 or any other (recent) Nokia phone connected via USB in PC suite mode. I've been meaning to write a howto for that, and I guess it's high time I actually go and do that. ;) That said, you know far more about it! Do you have a sample modem.conf for N900? And other clues would be appreciated! There's no need for modem.conf on the N900; in fact, my ofono package builds with atmodem and udev disabled. The isimodem driver automagically detects modems via netlink. Cheers, Aki ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Disabling Desktop Notifications
On Wed, 2010-01-06 at 01:06 +0100, ext dc101 wrote: Hi all, Is it possible to disable the connection notifications when the device boots up? The notifications I am interested in disabling are: -When the device is connected to DUMMY automatically (Connected to dummy) -When the device is looking to connect to phone (Searching for phone...) -When the device failed to connect to any phones (Could not find phone) I understand that all the notifications are called to the Notification D-Bus Service, and it's probably not possible to disable certain notifications, but at the very least I'd be happy to know if I can turn off the notification d-bus service. hildon-home is handling the notification service, so you can hack it to not handle org.freedesktop.Notifications. The code is in Gitorious: http://maemo.gitorious.org/fremantle-hildon-desktop/hildon-home However, I think most of the notification are displayed by the daemons/applications themselves, so you can only rid some of them, unless you hack the libhildon1 library so that it does not show infobanners at all. -Kimmo Cheers, dc101 ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Debugging applet causing hildon-home crash
On Wed, 2010-01-06 at 22:46 +0100, ext Graham Cobb wrote: In Fremantle, the GPE Summary applet causes hildon-home to crash if it is removed and then re-added. I have not been able to work out what the problem is. We had several of this kind of crashes that happen when you remove and add it back. Usually the problem was in the Glib types that the applet uses: if it tries to register new types that are already there, or something similar. I guess Glib should print out some warnings for you? (notice that hildon-home probably closes stdout by default) Any hints on how best to debug this hildon-home crash? It could help to disable all other plugins than the one that you are debugging and using gdb or good old printfs I guess. -Kimmo Graham ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Drag Drop on GTK + Maemo 5 (was: Re: [pymaemo] DnD on N900)
On Thu, Jan 7, 2010 at 5:37 AM, Claudio Saavedra csaave...@igalia.com wrote: There is no drag 'n drop in Maemo GTK+. This has been deliberately disabled. I believe that pretty much answers Jeff's issue... Was this done for Maemo 5 ? Because according to Jeff it used to work on the N810 (Diablo). I haven't tested it myself on N810 , though. A stacktrace on the critical warning would be useful to find out the cause. How to get that stack trace (some glib/gtk function?) ? it does not crash the application , so I think gdb cannot be used in this case. Thanks, -- Anderson Lizardo OpenBossa Labs - INdT Manaus - Brazil ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Drag Drop on GTK + Maemo 5 (was: Re: [pymaemo] DnD on N900)
El jue, 07-01-2010 a las 10:08 -0400, Anderson Lizardo escribió: On Thu, Jan 7, 2010 at 5:37 AM, Claudio Saavedra csaave...@igalia.com wrote: There is no drag 'n drop in Maemo GTK+. This has been deliberately disabled. I believe that pretty much answers Jeff's issue... Was this done for Maemo 5 ? Because according to Jeff it used to work on the N810 (Diablo). I haven't tested it myself on N810 , though. Yes, only since Maemo 5. A stacktrace on the critical warning would be useful to find out the cause. How to get that stack trace (some glib/gtk function?) ? it does not crash the application , so I think gdb cannot be used in this case. Set G_DEBUG=fatal-criticals. That will cause glib to abort on a critical warning. Claudio ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: How to access geotag information?
Till Harbaum on 01/07/2010 06:30 AM wrote: How do i access geotags? With libexif. GPS coordinates are in the EXIF data. ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
