Takashi Iwai wrote:
> You can override the values easily in user configuration, e.g. by
> adding the following line to ~/.asoundrc:
>
> defaults.namehist.showall on
>
> To force to override even the variable type, you can add '!' modifier,
>
> defaults.namehist.!showall 1
>
Well I tried doing both of the above in ~/.asoundrc, but I'm still not getting
any listing of the pcm hw or plughw devices, or any plugins.
The only thing that changes is the addition the following when calling the
hints function with "hwdep":
hw:CARD=PAD
RME Digi96/8 PAD
hw:CARD=UART
MPU-401 UART
hw:CARD=V8237
VIA 8237
I'm not sure what hwdep means exactly.. Are these also pcm devices?
Here's my test application.. Is there anything wrong here?
#include <alsa/asoundlib.h>
#include <iostream>
int main()
{
size_t start, end;
std::string desc;
void ** hints, ** str_c;
char * name_c, * desc_c;
int index = 0;
const char * ifaces[] = {
"card", "pcm", "rawmidi", "timer", "seq", "hwdep", 0
};
snd_config_update();
while (ifaces[index]) {
std::cout << "---- Trying \"" << ifaces[index] << "\" ----\n\n";
if (snd_device_name_hint(-1, ifaces[index], &hints) < 0) {
std::cerr << "hint failed on \"" << ifaces[index] << "\"\n\n";
++index;
continue;
}
str_c = hints;
while (*str_c) {
name_c = snd_device_name_get_hint(*str_c, "NAME");
desc_c = snd_device_name_get_hint(*str_c, "DESC");
std::cout << name_c << "\n";
start = 0;
desc = desc_c;
do {
end = desc.find("\n", start);
std::cout << " " << desc.substr(start, end - start) << "\n";
start = end + 1;
} while (end != std::string::npos);
std::cout << "\n";
free(name_c);
free(desc_c);
++str_c;
}
snd_device_name_free_hint(hints);
++index;
}
return 0;
}
My system has two soundcards: an RME Digi96/8 PAD and an onboard VIA. The RME
has two devices, and the VIA four.
The result of the test application with showall set to on is the following:
---- Trying "card" ----
hint failed on "card"
---- Trying "pcm" ----
default:CARD=PAD
RME Digi96/8 PAD, Digi96 IEC958
Default Audio Device
null
Discard all samples (playback) or generate zero samples (capture)
default:CARD=UART
MPU-401 UART
Default Audio Device
default:CARD=V8237
VIA 8237, VIA 8237
Default Audio Device
front:CARD=V8237,DEV=0
VIA 8237, VIA 8237
Front speakers
surround40:CARD=V8237,DEV=0
VIA 8237, VIA 8237
4.0 Surround output to Front and Rear speakers
surround41:CARD=V8237,DEV=0
VIA 8237, VIA 8237
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=V8237,DEV=0
VIA 8237, VIA 8237
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=V8237,DEV=0
VIA 8237, VIA 8237
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
iec958:CARD=V8237,DEV=0
VIA 8237, VIA 8237
IEC958 (S/PDIF) Digital Audio Output
---- Trying "rawmidi" ----
hw:CARD=PAD
RME Digi96/8 PAD
Direct rawmidi driver device
hw:CARD=UART,DEV=0
MPU-401 UART, MPU-401 UART MIDI
Direct rawmidi driver device
hw:CARD=V8237
VIA 8237
Direct rawmidi driver device
---- Trying "timer" ----
---- Trying "seq" ----
---- Trying "hwdep" ----
hw:CARD=PAD
RME Digi96/8 PAD
hw:CARD=UART
MPU-401 UART
hw:CARD=V8237
VIA 8237
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