Jump to content


Photo

bluetooth dongle ??


  • This topic is locked This topic is locked
2 replies to this topic

#1 asik1

asik1

    Advanced Member

  • Jr. Member
  • PipPipPip
  • 182 posts

Posted 16 January 2013 - 09:37 AM

I'm sorry if it was raised before but, How come there is hardly any info about using Bluetooth dongle with OTG for these chinese tabs in the forums??
I can see the proper lines in the permissions file in JB, I tried 2 dongles on my P85DC but nothing working... :angry:

loved my P85/3066 but he had dead buttons fever, and practicly died after ~15 months
Got PIPO S2, will he live long?


#2 Reimar

Reimar

    Mr. Imperfect

  • Global Moderators
  • 3,042 posts
  • LocationSamut Prakarn (Thailand)

Posted 16 January 2013 - 10:35 AM

I'm sorry if it was raised before but, How come there is hardly any info about using Bluetooth dongle with OTG for these chinese tabs in the forums??
I can see the proper lines in the permissions file in JB, I tried 2 dongles on my P85DC but nothing working... :angry:


Same for me, I never found an Bluetooth Dongle which worked on an tablet!

Mr. Imperfect
from
LOS (Land of Smile (Thailand))


Posted Image


Please do NOT hijack my signature picture. Thanks.

#3 Nickos-V

Nickos-V

    Advanced Member

  • Hero Member
  • PipPipPip
  • 2,052 posts

Posted 16 January 2013 - 12:38 PM

Reason why many Bluetooth dongles do not work are: a] on btusb.c blacklist (see below) and/or b] require additional fix. ie. either compile RAM patch or firmware module

The best way would be to find a BT dongle that works on Ubuntu 11, 10 or 9. That should very likely work on Android too since they use the same Linux kernel.


I have tried testing my bluetooth dongle.

It comes up as ID: 0a12:0001 Cambridge Silicon Radio Ltd Bluetooth Dongle (HCI Mode) if you use lsusb under Linux.

Most important thing is btusb.c (bluetooth-usb driver).

That hardware appears to be on a blacklist. So, driver will not work. CSR = Cambridge Silicon Radio.
http://lxr.free-elec...usb.c?v=3.0#L96

"{ USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },"

Any hardware in that blacklist should not work. ie. hardware with those vendor & device ids. It is quite a big list too. Also, BT adapters do not state IDs. That means having to search the NET for Linux logs to find them and check if they are on the list or not. Not that easy!

This person was able to use a Dlink DBT-122 on his HeroTab with Android 2.3
http://www.slatedroi...post__p__171698

Pretty sure DBT-122 will work but very big size. I did not see the Vendor ID in the btusb blacklist.
http://www.insanelym...g/#entry1560620

*MINIX NEO X5 (RK3066) - OK. Not fun because uses mouse cursor.
*YUANDAO N80 DUAL (RK3066) - Very good
*CUBE U30GT (RK3066)- Defective; buttons broke in 2-3 weeks; Bad quality control!!! I will never buy a Cube again!!! - Very good while working
*WOPAD I7 (RK2918)- About OK. Sluggish because has weaker ARM chip (RK2918) & less RAM (512 MB).