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authorLinus Torvalds <torvalds@g5.osdl.org>2006-03-22 13:59:20 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-22 13:59:20 -0500
commit1c2e02750b992703a8a18634e08b04353face243 (patch)
tree5dc2d10bad329eeb73b9e219e237662a8383f971 /Documentation
parent8b4b6707ee32f929846d947d18b1b9bf42e988aa (diff)
parenta3c44854a59f7e983c867060aa906bbf5befb1ef (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/perex/alsa
* git://git.kernel.org/pub/scm/linux/kernel/git/perex/alsa: (124 commits) [ALSA] version 1.0.11rc4 [PATCH] Intruduce DMA_28BIT_MASK [ALSA] hda-codec - Add support for ASUS P4GPL-X [ALSA] hda-codec - Add support for HP nx9420 laptop [ALSA] Fix memory leaks in error path of control.c [ALSA] AMD Au1x00: AC'97 controller is memory mapped [ALSA] AMD Au1x00: fix DMA init/cleanup [ALSA] hda-codec - Fix generic auto-configurator [ALSA] hda-codec - Fix BIOS auto-configuration [ALSA] Fixes typos in Audiophile-USB.txt [ALSA] ice1712 - typo fixes for dxr_enable module option [ALSA] AMD Au1x00: make driver build after cleanup [ALSA] ice1712 - Fix wrong value types for enum items [ALSA] fix resource leak in usbmixer [ALSA] Fix gus_pcm dereference before NULL [ALSA] Fix seq_clientmgr dereferences before NULL check [ALSA] hda-codec - Fix for Samsung R65 and ASUS A6J [ALSA] hda-codec - Add support for VAIO FE550G and SZ110 [ALSA] usb-audio: add Maya44 mixer control names [ALSA] usb-audio: add Casio PL-40R support ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/sound/alsa/ALSA-Configuration.txt71
-rw-r--r--Documentation/sound/alsa/Audiophile-Usb.txt333
-rw-r--r--Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl6
3 files changed, 404 insertions, 6 deletions
diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 36b511c7cade..1def6049784c 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -513,6 +513,8 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
513 513
514 This module supports multiple cards and autoprobe. 514 This module supports multiple cards and autoprobe.
515 515
516 The power-management is supported.
517
516 Module snd-ens1371 518 Module snd-ens1371
517 ------------------ 519 ------------------
518 520
@@ -526,6 +528,8 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
526 528
527 This module supports multiple cards and autoprobe. 529 This module supports multiple cards and autoprobe.
528 530
531 The power-management is supported.
532
529 Module snd-es968 533 Module snd-es968
530 ---------------- 534 ----------------
531 535
@@ -671,6 +675,8 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
671 675
672 model - force the model name 676 model - force the model name
673 position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size) 677 position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size)
678 single_cmd - Use single immediate commands to communicate with
679 codecs (for debugging only)
674 680
675 This module supports one card and autoprobe. 681 This module supports one card and autoprobe.
676 682
@@ -694,13 +700,34 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
694 asus 3-jack 700 asus 3-jack
695 uniwill 3-jack 701 uniwill 3-jack
696 F1734 2-jack 702 F1734 2-jack
703 lg LG laptop (m1 express dual)
697 test for testing/debugging purpose, almost all controls can be 704 test for testing/debugging purpose, almost all controls can be
698 adjusted. Appearing only when compiled with 705 adjusted. Appearing only when compiled with
699 $CONFIG_SND_DEBUG=y 706 $CONFIG_SND_DEBUG=y
707 auto auto-config reading BIOS (default)
700 708
701 ALC260 709 ALC260
702 hp HP machines 710 hp HP machines
703 fujitsu Fujitsu S7020 711 fujitsu Fujitsu S7020
712 acer Acer TravelMate
713 basic fixed pin assignment (old default model)
714 auto auto-config reading BIOS (default)
715
716 ALC262
717 fujitsu Fujitsu Laptop
718 basic fixed pin assignment w/o SPDIF
719 auto auto-config reading BIOS (default)
720
721 ALC882/883/885
722 3stack-dig 3-jack with SPDIF I/O
723 6stck-dig 6-jack digital with SPDIF I/O
724 auto auto-config reading BIOS (default)
725
726 ALC861
727 3stack 3-jack
728 3stack-dig 3-jack with SPDIF I/O
729 6stack-dig 6-jack with SPDIF I/O
730 auto auto-config reading BIOS (default)
704 731
705 CMI9880 732 CMI9880
706 minimal 3-jack in back 733 minimal 3-jack in back
@@ -710,6 +737,28 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
710 allout 5-jack in back, 2-jack in front, SPDIF out 737 allout 5-jack in back, 2-jack in front, SPDIF out
711 auto auto-config reading BIOS (default) 738 auto auto-config reading BIOS (default)
712 739
740 AD1981
741 basic 3-jack (default)
742 hp HP nx6320
743
744 AD1986A
745 6stack 6-jack, separate surrounds (default)
746 3stack 3-stack, shared surrounds
747 laptop 2-channel only (FSC V2060, Samsung M50)
748 laptop-eapd 2-channel with EAPD (Samsung R65, ASUS A6J)
749
750 AD1988
751 6stack 6-jack
752 6stack-dig ditto with SPDIF
753 3stack 3-jack
754 3stack-dig ditto with SPDIF
755 laptop 3-jack with hp-jack automute
756 laptop-dig ditto with SPDIF
757 auto auto-confgi reading BIOS (default)
758
759 STAC7661(?)
760 vaio Setup for VAIO FE550G/SZ110
761
713 If the default configuration doesn't work and one of the above 762 If the default configuration doesn't work and one of the above
714 matches with your device, report it together with the PCI 763 matches with your device, report it together with the PCI
715 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel 764 subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
@@ -723,6 +772,17 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
723 (Usually SD_LPLIB register is more accurate than the 772 (Usually SD_LPLIB register is more accurate than the
724 position buffer.) 773 position buffer.)
725 774
775 NB: If you get many "azx_get_response timeout" messages at
776 loading, it's likely a problem of interrupts (e.g. ACPI irq
777 routing). Try to boot with options like "pci=noacpi". Also, you
778 can try "single_cmd=1" module option. This will switch the
779 communication method between HDA controller and codecs to the
780 single immediate commands instead of CORB/RIRB. Basically, the
781 single command mode is provided only for BIOS, and you won't get
782 unsolicited events, too. But, at least, this works independently
783 from the irq. Remember this is a last resort, and should be
784 avoided as much as possible...
785
726 The power-management is supported. 786 The power-management is supported.
727 787
728 Module snd-hdsp 788 Module snd-hdsp
@@ -802,6 +862,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
802 ------------------ 862 ------------------
803 863
804 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards. 864 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
865 * MidiMan M Audio Revolution 5.1
805 * MidiMan M Audio Revolution 7.1 866 * MidiMan M Audio Revolution 7.1
806 * AMP Ltd AUDIO2000 867 * AMP Ltd AUDIO2000
807 * TerraTec Aureon 5.1 Sky 868 * TerraTec Aureon 5.1 Sky
@@ -810,6 +871,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
810 * TerraTec Phase 22 871 * TerraTec Phase 22
811 * TerraTec Phase 28 872 * TerraTec Phase 28
812 * AudioTrak Prodigy 7.1 873 * AudioTrak Prodigy 7.1
874 * AudioTrak Prodigy 7.1LT
813 * AudioTrak Prodigy 192 875 * AudioTrak Prodigy 192
814 * Pontis MS300 876 * Pontis MS300
815 * Albatron K8X800 Pro II 877 * Albatron K8X800 Pro II
@@ -820,9 +882,9 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
820 * Shuttle SN25P 882 * Shuttle SN25P
821 883
822 model - Use the given board model, one of the following: 884 model - Use the given board model, one of the following:
823 revo71, amp2000, prodigy71, prodigy192, aureon51, 885 revo51, revo71, amp2000, prodigy71, prodigy71lt,
824 aureon71, universe, k8x800, phase22, phase28, ms300, 886 prodigy192, aureon51, aureon71, universe,
825 av710 887 k8x800, phase22, phase28, ms300, av710
826 888
827 This module supports multiple cards and autoprobe. 889 This module supports multiple cards and autoprobe.
828 890
@@ -1353,6 +1415,9 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
1353 1415
1354 vid - Vendor ID for the device (optional) 1416 vid - Vendor ID for the device (optional)
1355 pid - Product ID for the device (optional) 1417 pid - Product ID for the device (optional)
1418 device_setup - Device specific magic number (optional)
1419 - Influence depends on the device
1420 - Default: 0x0000
1356 1421
1357 This module supports multiple devices, autoprobe and hotplugging. 1422 This module supports multiple devices, autoprobe and hotplugging.
1358 1423
diff --git a/Documentation/sound/alsa/Audiophile-Usb.txt b/Documentation/sound/alsa/Audiophile-Usb.txt
new file mode 100644
index 000000000000..4692c8e77dc1
--- /dev/null
+++ b/Documentation/sound/alsa/Audiophile-Usb.txt
@@ -0,0 +1,333 @@
1 Guide to using M-Audio Audiophile USB with ALSA and Jack v1.2
2 ========================================================
3
4 Thibault Le Meur <Thibault.LeMeur@supelec.fr>
5
6This document is a guide to using the M-Audio Audiophile USB (tm) device with
7ALSA and JACK.
8
91 - Audiophile USB Specs and correct usage
10==========================================
11This part is a reminder of important facts about the functions and limitations
12of the device.
13
14The device has 4 audio interfaces, and 2 MIDI ports:
15 * Analog Stereo Input (Ai)
16 - This port supports 2 pairs of line-level audio inputs (1/4" TS and RCA)
17 - When the 1/4" TS (jack) connectors are connected, the RCA connectors
18 are disabled
19 * Analog Stereo Output (Ao)
20 * Digital Stereo Input (Di)
21 * Digital Stereo Output (Do)
22 * Midi In (Mi)
23 * Midi Out (Mo)
24
25The internal DAC/ADC has the following caracteristics:
26* sample depth of 16 or 24 bits
27* sample rate from 8kHz to 96kHz
28* Two ports can't use different sample depths at the same time.Moreover, the
29Audiophile USB documentation gives the following Warning: "Please exit any
30audio application running before switching between bit depths"
31
32Due to the USB 1.1 bandwidth limitation, a limited number of interfaces can be
33activated at the same time depending on the audio mode selected:
34 * 16-bit/48kHz ==> 4 channels in/ 4 channels out
35 - Ai+Ao+Di+Do
36 * 24-bit/48kHz ==> 4 channels in/2 channels out,
37 or 2 channels in/4 channels out
38 - Ai+Ao+Do or Ai+Di+Ao or Ai+Di+Do or Di+Ao+Do
39 * 24-bit/96kHz ==> 2 channels in, or 2 channels out (half duplex only)
40 - Ai or Ao or Di or Do
41
42Important facts about the Digital interface:
43--------------------------------------------
44 * The Do port additionnaly supports surround-encoded AC-3 and DTS passthrough,
45though I haven't tested it under linux
46 - Note that in this setup only the Do interface can be enabled
47 * Apart from recording an audio digital stream, enabling the Di port is a way
48to synchronize the device to an external sample clock
49 - As a consequence, the Di port must be enable only if an active Digital
50source is connected
51 - Enabling Di when no digital source is connected can result in a
52synchronization error (for instance sound played at an odd sample rate)
53
54
552 - Audiophile USB support in ALSA
56==================================
57
582.1 - MIDI ports
59----------------
60The Audiophile USB MIDI ports will be automatically supported once the
61following modules have been loaded:
62 * snd-usb-audio
63 * snd-seq
64 * snd-seq-midi
65
66No additionnal setting is required.
67
682.2 - Audio ports
69-----------------
70
71Audio functions of the Audiophile USB device are handled by the snd-usb-audio
72module. This module can work in a default mode (without any device-specific
73parameter), or in an advanced mode with the device-specific parameter called
74"device_setup".
75
762.2.1 - Default Alsa driver mode
77
78The default behaviour of the snd-usb-audio driver is to parse the device
79capabilities at startup and enable all functions inside the device (including
80all ports at any sample rates and any sample depths supported). This approach
81has the advantage to let the driver easily switch from sample rates/depths
82automatically according to the need of the application claiming the device.
83
84In this case the Audiophile ports are mapped to alsa pcm devices in the
85following way (I suppose the device's index is 1):
86 * hw:1,0 is Ao in playback and Di in capture
87 * hw:1,1 is Do in playback and Ai in capture
88 * hw:1,2 is Do in AC3/DTS passthrough mode
89
90You must note as well that the device uses Big Endian byte encoding so that
91supported audio format are S16_BE for 16-bit depth modes and S24_3BE for
9224-bits depth mode. One exception is the hw:1,2 port which is Little Endian
93compliant and thus uses S16_LE.
94
95Examples:
96 * playing a S24_3BE encoded raw file to the Ao port
97 % aplay -D hw:1,0 -c2 -t raw -r48000 -fS24_3BE test.raw
98 * recording a S24_3BE encoded raw file from the Ai port
99 % arecord -D hw:1,1 -c2 -t raw -r48000 -fS24_3BE test.raw
100 * playing a S16_BE encoded raw file to the Do port
101 % aplay -D hw:1,1 -c2 -t raw -r48000 -fS16_BE test.raw
102
103If you're happy with the default Alsa driver setup and don't experience any
104issue with this mode, then you can skip the following chapter.
105
1062.2.2 - Advanced module setup
107
108Due to the hardware constraints described above, the device initialization made
109by the Alsa driver in default mode may result in a corrupted state of the
110device. For instance, a particularly annoying issue is that the sound captured
111from the Ai port sounds distorted (as if boosted with an excessive high volume
112gain).
113
114For people having this problem, the snd-usb-audio module has a new module
115parameter called "device_setup".
116
1172.2.2.1 - Initializing the working mode of the Audiohile USB
118
119As far as the Audiohile USB device is concerned, this value let the user
120specify:
121 * the sample depth
122 * the sample rate
123 * whether the Di port is used or not
124
125Here is a list of supported device_setup values for this device:
126 * device_setup=0x00 (or omitted)
127 - Alsa driver default mode
128 - maintains backward compatibility with setups that do not use this
129 parameter by not introducing any change
130 - results sometimes in corrupted sound as decribed earlier
131 * device_setup=0x01
132 - 16bits 48kHz mode with Di disabled
133 - Ai,Ao,Do can be used at the same time
134 - hw:1,0 is not available in capture mode
135 - hw:1,2 is not available
136 * device_setup=0x11
137 - 16bits 48kHz mode with Di enabled
138 - Ai,Ao,Di,Do can be used at the same time
139 - hw:1,0 is available in capture mode
140 - hw:1,2 is not available
141 * device_setup=0x09
142 - 24bits 48kHz mode with Di disabled
143 - Ai,Ao,Do can be used at the same time
144 - hw:1,0 is not available in capture mode
145 - hw:1,2 is not available
146 * device_setup=0x19
147 - 24bits 48kHz mode with Di enabled
148 - 3 ports from {Ai,Ao,Di,Do} can be used at the same time
149 - hw:1,0 is available in capture mode and an active digital source must be
150 connected to Di
151 - hw:1,2 is not available
152 * device_setup=0x0D or 0x10
153 - 24bits 96kHz mode
154 - Di is enabled by default for this mode but does not need to be connected
155 to an active source
156 - Only 1 port from {Ai,Ao,Di,Do} can be used at the same time
157 - hw:1,0 is available in captured mode
158 - hw:1,2 is not available
159 * device_setup=0x03
160 - 16bits 48kHz mode with only the Do port enabled
161 - AC3 with DTS passthru (not tested)
162 - Caution with this setup the Do port is mapped to the pcm device hw:1,0
163
1642.2.2.2 - Setting and switching configurations with the device_setup parameter
165
166The parameter can be given:
167 * By manually probing the device (as root):
168 # modprobe -r snd-usb-audio
169 # modprobe snd-usb-audio index=1 device_setup=0x09
170 * Or while configuring the modules options in your modules configuration file
171 - For Fedora distributions, edit the /etc/modprobe.conf file:
172 alias snd-card-1 snd-usb-audio
173 options snd-usb-audio index=1 device_setup=0x09
174
175IMPORTANT NOTE WHEN SWITCHING CONFIGURATION:
176-------------------------------------------
177 * You may need to _first_ intialize the module with the correct device_setup
178 parameter and _only_after_ turn on the Audiophile USB device
179 * This is especially true when switching the sample depth:
180 - first trun off the device
181 - de-register the snd-usb-audio module
182 - change the device_setup parameter (by either manually reprobing the module
183 or changing modprobe.conf)
184 - turn on the device
185
1862.2.2.3 - Audiophile USB's device_setup structure
187
188If you want to understand the device_setup magic numbers for the Audiophile
189USB, you need some very basic understanding of binary computation. However,
190this is not required to use the parameter and you may skip thi section.
191
192The device_setup is one byte long and its structure is the following:
193
194 +---+---+---+---+---+---+---+---+
195 | b7| b6| b5| b4| b3| b2| b1| b0|
196 +---+---+---+---+---+---+---+---+
197 | 0 | 0 | 0 | Di|24B|96K|DTS|SET|
198 +---+---+---+---+---+---+---+---+
199
200Where:
201 * b0 is the "SET" bit
202 - it MUST be set if device_setup is initialized
203 * b1 is the "DTS" bit
204 - it is set only for Digital output with DTS/AC3
205 - this setup is not tested
206 * b2 is the Rate selection flag
207 - When set to "1" the rate range is 48.1-96kHz
208 - Otherwise the sample rate range is 8-48kHz
209 * b3 is the bit depth selection flag
210 - When set to "1" samples are 24bits long
211 - Otherwise they are 16bits long
212 - Note that b2 implies b3 as the 96kHz mode is only supported for 24 bits
213 samples
214 * b4 is the Digital input flag
215 - When set to "1" the device assumes that an active digital source is
216 connected
217 - You shouldn't enable Di if no source is seen on the port (this leads to
218 synchronization issues)
219 - b4 is implied by b2 (since only one port is enabled at a time no synch
220 error can occur)
221 * b5 to b7 are reserved for future uses, and must be set to "0"
222 - might become Ao, Do, Ai, for b7, b6, b4 respectively
223
224Caution:
225 * there is no check on the value you will give to device_setup
226 - for instance choosing 0x05 (16bits 96kHz) will fail back to 0x09 since
227 b2 implies b3. But _there_will_be_no_warning_ in /var/log/messages
228 * Hardware constraints due to the USB bus limitation aren't checked
229 - choosing b2 will prepare all interfaces for 24bits/96kHz but you'll
230 only be able to use one at the same time
231
2322.2.3 - USB implementation details for this device
233
234You may safely skip this section if you're not interrested in driver
235development.
236
237This section describes some internals aspect of the device and summarize the
238data I got by usb-snooping the windows and linux drivers.
239
240The M-Audio Audiophile USB has 7 USB Interfaces:
241a "USB interface":
242 * USB Interface nb.0
243 * USB Interface nb.1
244 - Audio Control function
245 * USB Interface nb.2
246 - Analog Output
247 * USB Interface nb.3
248 - Digital Output
249 * USB Interface nb.4
250 - Analog Input
251 * USB Interface nb.5
252 - Digital Input
253 * USB Interface nb.6
254 - MIDI interface compliant with the MIDIMAN quirk
255
256Each interface has 5 altsettings (AltSet 1,2,3,4,5) except:
257 * Interface 3 (Digital Out) has an extra Alset nb.6
258 * Interface 5 (Digital In) does not have Alset nb.3 and 5
259
260Here is a short description of the AltSettings capabilities:
261 * AltSettings 1 corresponds to
262 - 24-bit depth, 48.1-96kHz sample mode
263 - Adaptive playback (Ao and Do), Synch capture (Ai), or Asynch capture (Di)
264 * AltSettings 2 corresponds to
265 - 24-bit depth, 8-48kHz sample mode
266 - Asynch capture and playback (Ao,Ai,Do,Di)
267 * AltSettings 3 corresponds to
268 - 24-bit depth, 8-48kHz sample mode
269 - Synch capture (Ai) and Adaptive playback (Ao,Do)
270 * AltSettings 4 corresponds to
271 - 16-bit depth, 8-48kHz sample mode
272 - Asynch capture and playback (Ao,Ai,Do,Di)
273 * AltSettings 5 corresponds to
274 - 16-bit depth, 8-48kHz sample mode
275 - Synch capture (Ai) and Adaptive playback (Ao,Do)
276 * AltSettings 6 corresponds to
277 - 16-bit depth, 8-48kHz sample mode
278 - Synch playback (Do), audio format type III IEC1937_AC-3
279
280In order to ensure a correct intialization of the device, the driver
281_must_know_ how the device will be used:
282 * if DTS is choosen, only Interface 2 with AltSet nb.6 must be
283 registered
284 * if 96KHz only AltSets nb.1 of each interface must be selected
285 * if samples are using 24bits/48KHz then AltSet 2 must me used if
286 Digital input is connected, and only AltSet nb.3 if Digital input
287 is not connected
288 * if samples are using 16bits/48KHz then AltSet 4 must me used if
289 Digital input is connected, and only AltSet nb.5 if Digital input
290 is not connected
291
292When device_setup is given as a parameter to the snd-usb-audio module, the
293parse_audio_enpoint function uses a quirk called
294"audiophile_skip_setting_quirk" in order to prevent AltSettings not
295corresponding to device_setup from being registered in the driver.
296
2973 - Audiophile USB and Jack support
298===================================
299
300This section deals with support of the Audiophile USB device in Jack.
301The main issue regarding this support is that the device is Big Endian
302compliant.
303
3043.1 - Using the plug alsa plugin
305--------------------------------
306
307Jack doesn't directly support big endian devices. Thus, one way to have support
308for this device with Alsa is to use the Alsa "plug" converter.
309
310For instance here is one way to run Jack with 2 playback channels on Ao and 2
311capture channels from Ai:
312 % jackd -R -dalsa -dplughw:1 -r48000 -p256 -n2 -D -Cplughw:1,1
313
314
315However you may see the following warning message:
316"You appear to be using the ALSA software "plug" layer, probably a result of
317using the "default" ALSA device. This is less efficient than it could be.
318Consider using a hardware device instead rather than using the plug layer."
319
320
3213.2 - Patching alsa to use direct pcm device
322-------------------------------------------
323A patch for Jack by Andreas Steinmetz adds support for Big Endian devices.
324However it has not been included in the CVS tree.
325
326You can find it at the following URL:
327http://sourceforge.net/tracker/index.php?func=detail&aid=1289682&group_id=39687&
328atid=425939
329
330After having applied the patch you can run jackd with the following command
331line:
332 % jackd -R -dalsa -Phw:1,0 -r48000 -p128 -n2 -D -Chw:1,1
333
diff --git a/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl b/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
index 4251085d38d3..6dc9d9f622ca 100644
--- a/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
+++ b/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
@@ -1834,7 +1834,7 @@
1834 mychip_set_sample_format(chip, runtime->format); 1834 mychip_set_sample_format(chip, runtime->format);
1835 mychip_set_sample_rate(chip, runtime->rate); 1835 mychip_set_sample_rate(chip, runtime->rate);
1836 mychip_set_channels(chip, runtime->channels); 1836 mychip_set_channels(chip, runtime->channels);
1837 mychip_set_dma_setup(chip, runtime->dma_area, 1837 mychip_set_dma_setup(chip, runtime->dma_addr,
1838 chip->buffer_size, 1838 chip->buffer_size,
1839 chip->period_size); 1839 chip->period_size);
1840 return 0; 1840 return 0;
@@ -3388,7 +3388,7 @@ struct _snd_pcm_runtime {
3388 .name = "PCM Playback Switch", 3388 .name = "PCM Playback Switch",
3389 .index = 0, 3389 .index = 0,
3390 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 3390 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
3391 .private_values = 0xffff, 3391 .private_value = 0xffff,
3392 .info = my_control_info, 3392 .info = my_control_info,
3393 .get = my_control_get, 3393 .get = my_control_get,
3394 .put = my_control_put 3394 .put = my_control_put
@@ -3449,7 +3449,7 @@ struct _snd_pcm_runtime {
3449 </para> 3449 </para>
3450 3450
3451 <para> 3451 <para>
3452 The <structfield>private_values</structfield> field contains 3452 The <structfield>private_value</structfield> field contains
3453 an arbitrary long integer value for this record. When using 3453 an arbitrary long integer value for this record. When using
3454 generic <structfield>info</structfield>, 3454 generic <structfield>info</structfield>,
3455 <structfield>get</structfield> and 3455 <structfield>get</structfield> and