[Alsa-user] Unbind builtin module to use external one.

[<nut...@gm...>]

Hi,


I can't use internal snd_intel_sst, it is android kernel without source. 
I tryed everything, alsa does not work with internal module.

So if it is possible unbind internal module I build another with source 
from www.kernel.org same version 3.10.20 and perhaps ... it works.


Now from dmesg:
snd_intel_sst: INFO: ******** SST DRIVER loading.. Ver: 3.0.8
snd_byt_bl_rt5642: Baytrail Machine Driver byt_rt5642 registerd
byt_rt5642 AMCR0F28:00:  snd-soc-dummy-dai <-> ssp-bt-cpu-dai mapping ok
byt_rt5642 AMCR0F28:00:  snd-soc-dummy-dai <-> ssp-modem-cpu-dai mapping ok
snd_byt_bl_rt5642: snd_byt_mc_probe successful

I executed:

root@clock:~# cd /sys/bus/pci/drivers/intel_sst_driver
root@clock:/sys/bus/pci/drivers/intel_sst_driver# ll
total 0
--w------- 1 root root 4096 Jan  4 15:53 bind
lrwxrwxrwx 1 root root    0 Jan  4 15:53 module -> 
../../../../module/snd_intel_sst
--w------- 1 root root 4096 Jan  4 15:53 new_id
--w------- 1 root root 4096 Jan  4 15:53 remove_id
--w------- 1 root root 4096 Jan  4 15:53 uevent
--w------- 1 root root 4096 Jan  4 16:43 unbind
root@blacktile:...# echo "AMCR0F28:00" > unbind
-su: echo: write error: No such device






I googled but no documentation about string to use for unbind.




Thanks







lspci
00:00.0 Host bridge: Intel Corporation ValleyView SSA-CUnit (rev 0f)
00:02.0 VGA compatible controller: Intel Corporation ValleyView Gen7 
(rev 0f)
00:03.0 Multimedia controller: Intel Corporation ValleyView ISP (rev 0f)
00:14.0 USB controller: Intel Corporation ValleyView USB xHCI Host 
Controller (rev 0f)
00:16.0 USB controller: Intel Corporation ValleyView OTG (rev 0f)
00:1a.0 Encryption controller: Intel Corporation ValleyView SEC (rev 0f)
00:1f.0 ISA bridge: Intel Corporation ValleyView Power Control Unit (rev 0f)