Author: db

  • Switched horses, working on nexus 7 in dash

    So the combination of limitations on the other device were bugging me. The resistive screen, the slow processor, the low memory, the gingerbread. But the final straw was the bluetooth hooked to the ‘CE’ device. So i have moved ahead with a Nexus 7 (2013) project. I have acquired single-wire-canbus (for steering wheel controls), USB […]

  • more on builtin bluetooth

    so the external bluetooth dongle is now working for PAN. But lets look @ the built-in one a bit more. I see that it uses /system/bin/sdptool to configure. And that in init.rc, it does somethings like setup HFAG (Handsfree audio gateway), HSAG (Headset), OPUSH (share business cards and such), PBAP (Phone book profile). So it should […]

  • NAND layout

    <4>[ 3.020000] ============================================= <4>[ 3.030000] [NAND Physical Invalid Block Info] <4>[ 3.040000] ============================================= <4>[ 3.040000] CS#0: (20/1024)Blocks – (80/4096)Blocks <4>[ 3.050000] ============================================= <4>[ 3.050000] [NAND FTL Invalid Block Info] <4>[ 3.060000] ============================================= <4>[ 3.060000] <4>[ 3.060000] CS#0: (20/1024)Blocks – (80/4096)Blocks <4>[ 3.070000] [Total Physical Invalid Block Info] <4>[ 3.070000] (80/4096)Blocks <4>[ 3.080000] [Total FTL Invalid […]

  • microphone routing: off by default

    Trying to figure out if the microphone on the faceplate goes to the android device, or the wince device only. Using ‘sound meter’ it appears by default no sound is received. Looking in the output of ‘alsa_amixer’, i see there are some input devices (Mic, Capture). But they don’t seem to provide any audio level […]

  • Google Play Music and the tiny internal sdcard: move the cache

    OK, so installed Google Play Music, and ran out of flash space instantly. Solution: # mkdir -p /mnt/sdcard/gpsflash/MusicCache # cd /data/data/com.google.android.music # rm -r cache/* # rm -r files/* # mount -o bind /mnt/sdcard/gpsflash/MusicCache cache # mount -o bind /mnt/sdcard/gpsflash/MusicCache files and boom, we are good. Now just put these last two lines in a […]