4.6-rc6 working wifi - Re: Kernel 4.5

Paul Mansfield paul at mansfield.co.uk
Sun May 15 17:03:56 CEST 2016


I just found this
http://mailman.alsa-project.org/pipermail/alsa-devel/2015-July/094429.html

I did "modprobe snd-intel-sst-acpi" and a load of interesting stuff
appeared in kern.log

[ 6287.496646] __allocate_fw_buf: fw-intel/fw_sst_0f28.bin buf=f3061100
[ 6287.496698] intel_sst_acpi 80860F28:00: loading
/lib/firmware/updates/4.6.0-rc7-jbpm4-i686/intel/fw_sst_0f28.bin
failed with error -2
[ 6287.496763] intel_sst_acpi 80860F28:00: loading
/lib/firmware/updates/intel/fw_sst_0f28.bin failed with error -2
[ 6287.496816] intel_sst_acpi 80860F28:00: loading
/lib/firmware/4.6.0-rc7-jbpm4-i686/intel/fw_sst_0f28.bin failed with
error -2
[ 6287.510056] intel_sst_acpi 80860F28:00: direct-loading intel/fw_sst_0f28.bin
[ 6287.510094] fw_set_page_data: fw-intel/fw_sst_0f28.bin buf=f3061100
data=f9b69000 size=265892
[ 6287.510517] intel_sst_acpi 80860F28:00: wrong ram type0x3 in block0xb
[ 6287.536124] intel_sst_acpi 80860F28:00: Failed to parse fw
[ 6287.536306] bus: 'platform': add driver bytcr_rt5640
[ 6287.536351] bus: 'platform': driver_probe_device: matched device
bytcr_rt5640 with driver bytcr_rt5640
[ 6287.536487] bus: 'platform': really_probe: probing driver
bytcr_rt5640 with device bytcr_rt5640
[ 6287.536495] bytcr_rt5640 bytcr_rt5640: no default pinctrl state
[ 6287.536508] devices_kset: Moving bytcr_rt5640 to end of list
[ 6287.550108] __fw_free_buf: fw-intel/fw_sst_0f28.bin buf=f3061100
data=f9b69000 size=265892
[ 6287.668620] device: 'Baytrail Audio Port': device_add
[ 6287.668794] PM: Adding info for No Bus:Baytrail Audio Port
[ 6287.669056] bytcr_rt5640 bytcr_rt5640: snd-soc-dummy-dai <->
media-cpu-dai mapping ok
[ 6287.669082] device: 'Deep-Buffer Audio Port': device_add
[ 6287.669193] PM: Adding info for No Bus:Deep-Buffer Audio Port
[ 6287.669333] bytcr_rt5640 bytcr_rt5640: snd-soc-dummy-dai <->
deepbuffer-cpu-dai mapping ok
[ 6287.669357] device: 'Baytrail Compressed Port': device_add
[ 6287.669534] PM: Adding info for No Bus:Baytrail Compressed Port
[ 6287.669630] compress asoc: snd-soc-dummy-dai <-> compress-cpu-dai mapping ok
[ 6287.693550] device: 'SSP2-Codec': device_add
[ 6287.693669] PM: Adding info for No Bus:SSP2-Codec
[ 6287.693718] bytcr_rt5640 bytcr_rt5640: rt5640-aif1 <-> ssp2-port mapping ok
[ 6287.699368] device: 'card0': device_add
[ 6287.699525] PM: Adding info for No Bus:card0
[ 6287.699614] device: 'controlC0': device_add
[ 6287.699725] PM: Adding info for No Bus:controlC0
[ 6287.699923] device: 'pcmC0D0p': device_add
[ 6287.700042] PM: Adding info for No Bus:pcmC0D0p
[ 6287.700229] device: 'pcmC0D0c': device_add
[ 6287.700361] PM: Adding info for No Bus:pcmC0D0c
[ 6287.700572] device: 'pcmC0D1p': device_add
[ 6287.700710] PM: Adding info for No Bus:pcmC0D1p
[ 6287.700914] device: 'comprC0D2': device_add
[ 6287.701029] PM: Adding info for No Bus:comprC0D2
[ 6287.701399] driver: 'bytcr_rt5640': driver_bound: bound to device
'bytcr_rt5640'
[ 6287.701430] bus: 'platform': really_probe: bound device
bytcr_rt5640 to driver bytcr_rt5640



and now

root at toksvig:/var/log# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: bytcrrt5640 [bytcr-rt5640], device 0: Baytrail Audio (*) []
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: bytcrrt5640 [bytcr-rt5640], device 1: Deep-Buffer Audio (*) []
 Subdevices: 1/1
 Subdevice #0: subdevice #0


can't get amixer to control the hardware, or actually play a sound,
but this looks like a glimmer of hope!


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