lindi@ginger:~$ stap -v -e 'probe module("snd_soc_neo1973_wm8753").function("lm4853_set_spk"), module("snd_soc_neo1973_wm8753").function("lm4853_get_spk") { printf("\n%s %d\n", probefunc(), $gta02_speaker_enabled); }' -c bash
Pass 1: parsed user script and 74 library script(s) using 21344virt/12964res/2156shr kb, in 4060usr/320sys/4381real ms.
Pass 2: analyzed script: 2 probe(s), 2 function(s), 1 embed(s), 0 global(s) using 62676virt/14452res/2924shr kb, in 170usr/220sys/393real ms.
Pass 3: translated to C into "/tmp/stapEdh254/stap_5f26faa83cce2a111c23dc6ee1123b7a_2858.c" using 62772virt/15640res/4032shr kb, in 980usr/200sys/1170real ms.
Pass 4: compiled C into "stap_5f26faa83cce2a111c23dc6ee1123b7a_2858.ko" in 53610usr/6350sys/60645real ms.
Pass 5: starting run.
lindi@ginger:~$ amixer -c0 cget numid=59,name='Amp Spk Switch'
numid=59,iface=MIXER,name='Amp Spk Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off

lm4853_get_spk 0

lindi@ginger:~$ amixer -c0 cget numid=59,name='Amp Spk Switch'
numid=59,iface=MIXER,name='Amp Spk Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off

lm4853_get_spk 0

lindi@ginger:~$ amixer -c0 cset numid=59,name='Amp Spk Switch' on
numid=59,iface=MIXER,name='Amp Spk Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on

lm4853_set_spk 0
lm4853_get_spk 1

lindi@ginger:~$ amixer -c0 cget numid=59,name='Amp Spk Switch'
numid=59,iface=MIXER,name='Amp Spk Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
lindi@ginger:~$
lm4853_get_spk 1

lindi@ginger:~$ amixer -c0 cset numid=59,name='Amp Spk Switch' on

lm4853_set_spk 1
numid=59,iface=MIXER,name='Amp Spk Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
lindi@ginger:~$
lm4853_get_spk 1

lindi@ginger:~$ amixer -c0 cset numid=59,name='Amp Spk Switch' off
numid=59,iface=MIXER,name='Amp Spk Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
lindi@ginger:~$
lm4853_set_spk 1

lm4853_get_spk 0

lindi@ginger:~$ amixer -c0 cset numid=59,name='Amp Spk Switch' off
numid=59,iface=MIXER,name='Amp Spk Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
lindi@ginger:~$
lm4853_set_spk 0

lm4853_get_spk 0

lindi@ginger:~$ amixer -c0 cset numid=59,name='Amp Spk Switch' on
numid=59,iface=MIXER,name='Amp Spk Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
lindi@ginger:~$
lm4853_set_spk 0

lm4853_get_spk 1

lindi@ginger:~$ amixer -c0 cset numid=59,name='Amp Spk Switch' on
numid=59,iface=MIXER,name='Amp Spk Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
lindi@ginger:~$
lm4853_set_spk 1

lm4853_get_spk 1

lindi@ginger:~$ sudo sh -c 'echo mem > /sys/power/state'
lindi@ginger:~$ amixer -c0 cget numid=59,name='Amp Spk Switch'
numid=59,iface=MIXER,name='Amp Spk Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
lindi@ginger:~$
lm4853_get_spk 1

lindi@ginger:~$ amixer -c0 cset numid=59,name='Amp Spk Switch' on

lm4853_set_spk 1
numid=59,iface=MIXER,name='Amp Spk Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
lindi@ginger:~$
lm4853_get_spk 1

lindi@ginger:~$ sudo bin/gpio > gpio1.txt
lindi@ginger:~$ amixer -c0 cset numid=59,name='Amp Spk Switch' off
numid=59,iface=MIXER,name='Amp Spk Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off
lindi@ginger:~$
lm4853_set_spk 1

lm4853_get_spk 0

lindi@ginger:~$ sudo bin/gpio > gpio2.txt
lindi@ginger:~$ amixer -c0 cset numid=59,name='Amp Spk Switch' on
numid=59,iface=MIXER,name='Amp Spk Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=on
lindi@ginger:~$
lm4853_set_spk 0

lm4853_get_spk 1

lindi@ginger:~$ sudo bin/gpio > gpio3.txt
lindi@ginger:~$ diff -u gpio1.txt gpio2.txt
--- gpio1.txt   2011-10-28 00:32:32.000000000 +0300
+++ gpio2.txt   2011-10-28 00:32:59.000000000 +0300
@@ -15,4 +15,4 @@
 H  0  1  2  3  4  5  6  7  8  9 10
   F0  0R 0 F0R>0 F0RF1 F1 F0RF0 >0
 J  0  1  2  3  4  5  6  7  8  9 10 11 12
-   0R>0 >0 >0 >1 >1 >1  0R>1 >0 >0 >0 >1
+   0R>0 >1 >0 >1 >1 >1  0R>1 >0 >0 >0 >1
lindi@ginger:~$ diff -u gpio1.txt gpio3.txt
lindi@ginger:~$