[debian/fso5.5] bluettoth works only once -- after boot

arne anka openmoko at ginguppin.de
Sun Jul 26 14:08:55 CEST 2009

yesterday i finally tried using a bluetooth headset and after somen hassle  
(the comparatively expensive headset HBH-DS220 from sonyericsson can only  
handle one paired evice at a time, once you get more you have to repair it  
every time ... crap; a cheap, in fact free, jawbone PBH-8W can handle at  
least two, if not more).

anyway, after trying the aforementioned PBH-8W i was able to hear my own  
voice in call, but the other side couldn't hear me.
since i hadn't used it a long time i wasn't sure if the mic was somehow  
damaged and tested with another computer, to make sure it was ok, which it  

coming back to the fr and resuming it i noticed that bluetooth was gone.
symptoms and what i have tried last night:

# hcitool dev

does not list any device,

# mdbus -s org.bluez

does not list any of the devices known (two different headsets).

restarting bluetoothd did not change anything.

echo 1 > /sys/bus/platform/devices/neo1973-pm-bt.0/reset
echo 0 > /sys/bus/platform/devices/neo1973-pm-bt.0/reset
does not change anything

requesting the resource works (at least returns 1)
releasing returns an error

even after shutting down bluetoothd and frameworkd, i can't remove the  
modules bluetooth and btusb, btusb has always a use count of two, but not  
other modules are listed

Module                  Size  Used by
ipv6                  263228  10
g_ether                48212  0
snd_soc_neo1973_gta02_wm8753     8488  0
snd_soc_s3c24xx_i2s     3896  1 snd_soc_neo1973_gta02_wm8753
snd_soc_s3c24xx         4488  1 snd_soc_neo1973_gta02_wm8753
snd_soc_wm8753         33160  1 snd_soc_neo1973_gta02_wm8753
snd_soc_core           34616  3  
snd_pcm_oss            45352  0
snd_mixer_oss          15080  1 snd_pcm_oss
snd_pcm                75084  3 snd_soc_s3c24xx,snd_soc_core,snd_pcm_oss
snd_timer              20988  1 snd_pcm
snd_page_alloc          6504  1 snd_pcm
snd                    49988  7  
btusb                  11920  2
bluetooth              57112  1 btusb
ohci_hcd               31700  0
ar6000                126008  0

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