PiBox » pixm

1. The UI needs to set the labels right justified but not expanded/filled.
2. The UI needs the text fields for station, etc. expanded and filled.
3. The UI needs a field to show "device not available" when initialization doesn't work. A button (say "R" for restart/reload) should cause the device init and channelMgr thread to be started again, after the device is setup.
4. The ttyUSB port is missing.
   1. http://www.sealevel.com/support/article/AA-00524/0/How-to-configure-USB-serial-adapters-in-Linux.html
   2. https://www.kernel.org/doc/Documentation/usb/usb-serial.txt

Ugh. More power supply issues. The radio works fine on my laptop but doesn't work on my desktop with an external, powered USB hub. It also doesn't work on the Raspberry Pi either directly connected or connected to the external USB hub. I need to measure USB power to see if this might really be the problem. I can try this: https://www.amazon.com/Centech-USB-Power-Meter/dp/B00DAR4ITE

1. https://jarretdyrbye.wordpress.com/2013/12/31/a-diy-power-supply-for-hi-fi-usb-audio-with-your-raspberry-pi/
2. http://forum.allaboutcircuits.com/threads/stabilizing-a-usb-5v-in-reality-anywhere-from-4-5-to-5-5-power-source-to-a-true-5v-source.117217/
3. http://plugable.com/2013/07/22/usb-hubs-and-chargers-what-happens-when-you-pull-too-much-power/
4. http://electronics.stackexchange.com/questions/12935/stability-of-usb-5v-output
5. http://www.howtogeek.com/228869/how-to-monitor-your-usb-device-power-usage-and-output/

Stabilizing power might be possible by placing a big capacitor (100-1000uF perhaps) inline to the power line on the usb connection. Sparkfun has a tutorial on using capacitors. I should also check with Plugable's support, which has info on how they handle power to USB ports.

1. Update the UI as the channel scan is in progress.
2. When a rescan is done, rebuild the category list
3. The /dev/ttyUSB0 port needs to have "other" read perms. But why?
4. The current channel should be scanned often to update on the UI.

Here are the updates to be made for each tweak.

Update the UI as the channel scan is in progress.¶

1. mgrProcessor should be turned into a g_timeout_add() to simplify things. It just needs to run on a periodic basis and shutdown can just kill the timer.
   1. If the timer goes off but the last mgrProcessor is not complete then it should skip that iteration.
   2. mgrProcessor should rescan the current channel in one of its passes.
2. when mgrProcessor completes it needs to call populateList
3. populateList must do a gtk_widget_queue_draw(GTK_WIDGET()) which is probably needed because the widget update is happening outside the event main loop.

When a rescan is done, rebuild the category list¶

This isn't necessary as every response is checked to see if a new category has been found. However, addCategory() probably needs to support more than 256 categories.

The /dev/ttyUSB0 port needs to have "other" read perms. But why?¶

pixm needs to run privileged so it needs to be added to appmgr.priv by the postinst script in the opkg.

The current channel should be scanned often to update on the UI.¶

This is a new mode to add to mgrProcessor. We need to scan the current channel once a second or so. If we're using a g_timeout then every fourth time through (or so) should be a rescan of the current channel.