Notices

Originally Posted by carlit0x

you only need ti install lfocus_0.309-1_all.deb , download it from the phone and execute the file, then app manager will do the work for you

Originally Posted by carlit0x

when i run this command /usr/share/lfocus/v4l2-ctl -d /dev/radio0 -f 87.5

it says /bind/sh: /usr/share/lfocus/v4l2-ctl NOT FOUND

Here is an example of mine:

Code:

#!/bin/sh
/bin/echo 120 > /sys/class/i2c-adapter/i2c-2/2-0063/power_level
/usr/share/lfocus/v4l2-ctl -d /dev/radio0 -f 87.5
exit 0

If you are using simple-fmtx-widget and have set it up to execute fm-boost you can now turn on your fm transmitter and immediately tune it down by just tapping the widget.

Have fun!

Originally Posted by sachin007

I have the transmit widget with the boost. So how do i mod my fm transmitter to frequencies less than 88.1 with a single press of the transmit widget?

Thanks

Originally Posted by mzanetti

Yay! Got it!

According to the drivers documentation found on http://www.mjmwired.net/kernel/Docum...nux/si4713.txt the transmitters lower range is 76 MHz. However, the limit on mine is set to 87.5 MHz. I guess this depends on where you bought the device as 87.5 is also the lower limit here in Germany.

You can check the limits on your device/region by executing

Code:

cat /sys/class/i2c-adapter/i2c-2/2-0063/region_bottom_frequency

The transmitters properties (such as the current frequency) can be changed using a tool called v4l2-ctl. I have found a binary compiled for the N900 in this thread:
http://talk.maemo.org/showthread.php?t=46427
Go there, download and install the provided package (lfocus).

After installing lfocus you should have the tool v4l2-ctl installed in /usr/share/lfocus/v4l2-ctl.

Now start your FM transmitter. v4l2-ctl will work only while the transmitter is on.

Set the frequency by executing the following command as root:

Code:

/usr/share/lfocus/v4l2-ctl -d /dev/radio0 -f 87.5

This will set the frequency to 87.5 MHz. Change the value to your desire within the valid range.

PLEASE INFORM YOURSELF ABOUT THE LOCAL REGULATIONS FOR FM TRANSMITTERS AND MAKE SURE THAT YOU DO NOT VIOLATE THEM!!!

Optionally you can change fm-boost to switch frequency every time by adding the above command in the file /sbin/fm-boost. Make sure you insert it after the "#!/bin/sh" and before "exit 0"

Here is an example of mine:

Code:

#!/bin/sh
/bin/echo 120 > /sys/class/i2c-adapter/i2c-2/2-0063/power_level
/usr/share/lfocus/v4l2-ctl -d /dev/radio0 -f 87.5
exit 0

If you are using simple-fmtx-widget and have set it up to execute fm-boost you can now turn on your fm transmitter and immediately tune it down by just tapping the widget.

Have fun!

Originally Posted by mzanetti

it is actually already written in my previous post. if you don't know how to edit a file on the N900 try this:

there are different editors available. I for one prefer "nano". other options are "vi" (a bit more complex) and afaik midnight commander or "mc" for short. The following steps will explain how to edit files using nano.

Get superuser (root) rights. Install rootsh if not done yet, open the terminal and type

Code:

sudo gainroot

Install nano

Code:

apt-get install nano

Answer any questions with "y" for yes.

Next, open the file you want to edit, in this case /sbin/fm-boost

Code:

nano /sbin/fm-boost

You can now edit the contents of the file. after you are done type ctrl+x to exit the editor. A question will pop up on the bottom asking you if you want to save your changes. Type "y" and press enter and you are done.