* [ALSA - driver 0001909]: Labelling of controls for SB Extigy is confusing
@ 2006-08-04 16:50 bugtrack
0 siblings, 0 replies; 2+ messages in thread
From: bugtrack @ 2006-08-04 16:50 UTC (permalink / raw)
To: alsa-devel
The following issue has been ASSIGNED.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1909>
======================================================================
Reported By: andersin
Assigned To: Clemens Ladisch
======================================================================
Project: ALSA - driver
Issue ID: 1909
Category: USB - usb-audio
Reproducibility: always
Severity: text
Priority: normal
Status: assigned
Distribution:
Kernel Version:
======================================================================
Date Submitted: 03-11-2006 16:33 CET
Last Modified: 08-04-2006 18:50 CEST
======================================================================
Summary: Labelling of controls for SB Extigy is confusing
Description:
The controls for the SB Extigy are all labelled as Master. The names should
reflect the channel(s) that they control. Amixer shows this information
(albeit its mapping of controls to actual channels is off).
Additionally a Master 1 control exists that changes the volume of all
channels.
======================================================================
----------------------------------------------------------------------
Raymond - 08-03-06 04:16
----------------------------------------------------------------------
Most likely both alsamixer and amixer cannot handle these two controls
properly
http://www.alsa-project.org/~iwai/writing-an-alsa-driver/x851.htm
The index field holds the index number of this control. If there are
several different controls with the same name, they can be distinguished
by the index
number. This is the case when several codecs exist on the card. If the
index is zero, you can omit the definition above.
You have to ask the ALSA developer why index controls can have different
count.
The mixer applications need to be very smart to handle this difference in
count
control.16 {
comment.access 'read write'
comment.type INTEGER
comment.count 6
comment.range '0 - 200'
iface MIXER
name 'Master Playback Volume'
value.0 130
value.1 130
value.2 130
value.3 130
value.4 130
value.5 130
}
control.17 {
comment.access 'read write'
comment.type INTEGER
comment.count 1
comment.range '0 - 200'
iface MIXER
name 'Master Playback Volume'
index 1
value 130
}
----------------------------------------------------------------------
Raymond - 08-03-06 11:43
----------------------------------------------------------------------
Syntax: SOURCE [DIRECTION] FUNCTION
The following controls appear in capture view of alsamixer because it miss
the 'Playback' direction
Simple mixer control 'Bass',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 96
Mono: 48 [50%]
Simple mixer control 'Treble',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 96
Mono: 48 [50%]
The following control should only appear in capture view of alsamixer,
because the control name did not follow Syntax: SOURCE [DIRECTION]
FUNCTION
Simple mixer control 'Capture Input Source',0
Capabilities: enum
Items: 'Input 0' 'Mic' 'Mixer'
Item0: 'Input 0'
Simple mixer control 'Digital In',0
Capabilities: volume volume-joined pswitch pswitch-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 200
Mono: 200 [100%] Playback [on]
These control also not follow the syntax.
Simple mixer control 'Channel Routing Mode Select',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 6
Mono: 6 [100%]
similar bug report https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1971
and https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1366
Refer to appearance of EQ peaks in alsamixer.png in
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1366 , alsamixer
is supposed to handle up to 8 channels ( 2 , 2 , 1 , 1, 2 ) with 5 sliders
(i.e. front, rear, centre, lfe , side ) when the count of the control is
greater than two and up to eight only.
http://hg-mirror.alsa-project.org/alsa-kernel?f=2cd9765e57f6;file=Documentation/ControlNames.txt;style=gitweb
Issue History
Date Modified Username Field Change
======================================================================
03-11-06 16:33 andersin New Issue
08-02-06 02:40 Raymond Note Added: 0011384
08-02-06 14:31 andersin Note Added: 0011388
08-02-06 14:31 andersin Note Added: 0011389
08-03-06 04:06 Raymond Note Added: 0011395
08-03-06 04:16 Raymond Note Edited: 0011395
08-03-06 09:47 Raymond Note Added: 0011397
08-03-06 09:55 Raymond Note Edited: 0011397
08-03-06 09:57 Raymond Note Edited: 0011397
08-03-06 09:58 Raymond Note Edited: 0011397
08-03-06 09:59 Raymond Note Edited: 0011397
08-03-06 11:43 Raymond Note Edited: 0011397
08-04-06 18:49 Clemens LadischProject ALSA - utils => ALSA -
driver
08-04-06 18:50 Clemens LadischAssigned To => Clemens Ladisch
08-04-06 18:50 Clemens LadischStatus new => assigned
08-04-06 18:50 Clemens LadischCategory alsamixer => USB -
usb-audio
======================================================================
-------------------------------------------------------------------------
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^ permalink raw reply [flat|nested] 2+ messages in thread
* [ALSA - driver 0001909]: Labelling of controls for SB Extigy is confusing
@ 2006-08-04 16:59 bugtrack
0 siblings, 0 replies; 2+ messages in thread
From: bugtrack @ 2006-08-04 16:59 UTC (permalink / raw)
To: alsa-devel
A NOTE has been added to this issue.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1909>
======================================================================
Reported By: andersin
Assigned To: Clemens Ladisch
======================================================================
Project: ALSA - driver
Issue ID: 1909
Category: USB - usb-audio
Reproducibility: always
Severity: text
Priority: normal
Status: assigned
Distribution:
Kernel Version:
======================================================================
Date Submitted: 03-11-2006 16:33 CET
Last Modified: 08-04-2006 18:59 CEST
======================================================================
Summary: Labelling of controls for SB Extigy is confusing
Description:
The controls for the SB Extigy are all labelled as Master. The names should
reflect the channel(s) that they control. Amixer shows this information
(albeit its mapping of controls to actual channels is off).
Additionally a Master 1 control exists that changes the volume of all
channels.
======================================================================
----------------------------------------------------------------------
Raymond - 08-03-06 11:43
----------------------------------------------------------------------
Syntax: SOURCE [DIRECTION] FUNCTION
The following controls appear in capture view of alsamixer because it miss
the 'Playback' direction
Simple mixer control 'Bass',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 96
Mono: 48 [50%]
Simple mixer control 'Treble',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 96
Mono: 48 [50%]
The following control should only appear in capture view of alsamixer,
because the control name did not follow Syntax: SOURCE [DIRECTION]
FUNCTION
Simple mixer control 'Capture Input Source',0
Capabilities: enum
Items: 'Input 0' 'Mic' 'Mixer'
Item0: 'Input 0'
Simple mixer control 'Digital In',0
Capabilities: volume volume-joined pswitch pswitch-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 200
Mono: 200 [100%] Playback [on]
These control also not follow the syntax.
Simple mixer control 'Channel Routing Mode Select',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 6
Mono: 6 [100%]
similar bug report https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1971
and https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1366
Refer to appearance of EQ peaks in alsamixer.png in
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1366 , alsamixer
is supposed to handle up to 8 channels ( 2 , 2 , 1 , 1, 2 ) with 5 sliders
(i.e. front, rear, centre, lfe , side ) when the count of the control is
greater than two and up to eight only.
http://hg-mirror.alsa-project.org/alsa-kernel?f=2cd9765e57f6;file=Documentation/ControlNames.txt;style=gitweb
----------------------------------------------------------------------
Clemens Ladisch - 08-04-06 18:59
----------------------------------------------------------------------
andersin, your control names do not quite match the controls seen in other
SB Extigy devices (and that the driver expects).
Please post the output of "lsusb -v" for this device.
Issue History
Date Modified Username Field Change
======================================================================
03-11-06 16:33 andersin New Issue
08-02-06 02:40 Raymond Note Added: 0011384
08-02-06 14:31 andersin Note Added: 0011388
08-02-06 14:31 andersin Note Added: 0011389
08-03-06 04:06 Raymond Note Added: 0011395
08-03-06 04:16 Raymond Note Edited: 0011395
08-03-06 09:47 Raymond Note Added: 0011397
08-03-06 09:55 Raymond Note Edited: 0011397
08-03-06 09:57 Raymond Note Edited: 0011397
08-03-06 09:58 Raymond Note Edited: 0011397
08-03-06 09:59 Raymond Note Edited: 0011397
08-03-06 11:43 Raymond Note Edited: 0011397
08-04-06 18:49 Clemens LadischProject ALSA - utils => ALSA -
driver
08-04-06 18:50 Clemens LadischAssigned To => Clemens Ladisch
08-04-06 18:50 Clemens LadischStatus new => assigned
08-04-06 18:50 Clemens LadischCategory alsamixer => USB -
usb-audio
08-04-06 18:59 Clemens LadischNote Added: 0011420
======================================================================
-------------------------------------------------------------------------
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