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From: "John S. Denker" <jsd@monmouth.com>
To: alsa-devel@lists.sourceforge.net
Subject: usbaudio won't do 24-bit or 32-bit i/o, and won't do 96000 frames per second
Date: Thu, 05 Dec 2002 06:31:29 -0500	[thread overview]
Message-ID: <3DEF3911.4060206@monmouth.com> (raw)
In-Reply-To: <3DEF2ED7.7000808@monmouth.com>

     ==== This is a slightly-updated clone of item
     #636946 on the sourceforge bug/patch reporting
     system.  I'm moving it to here (the alsa-devel
     mailing list) at the request of Jaroslav. ====

I bought an Extigy, which is capable of 24-bit i/o. It is
also capable of digitizing 96000 frames per second.

The problem is, the alsa usbaudio driver seems to know
nothing of such capabilities.

I tried modifying the driver source, in analogy to the dummy
driver, but to no avail.

This means I am unable to use ALSA for this application.

Request #1: USB driver supporting 24-bit i/o. I don't care
whether it is encoded as S24_LE or S32_LE, just so long as
all the bits are encoded somehow.

Request #2: USB driver supporting 96000 frames per second.

Suggestion: If the code had better comments and
documentation, it would be easier for folks like me to
contribute fixes to problems such as this.

Note: there are other problems with this driver; see next
bug report.



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  reply	other threads:[~2002-12-05 11:31 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-12-05 10:47 sb16 gets wedged when doing overlapped i/o (full duplex) John S. Denker
2002-12-05 11:31 ` John S. Denker [this message]
2002-12-05 15:19   ` usbaudio won't do 24-bit or 32-bit i/o, and won't do 96000 frames per second Clemens Ladisch
2002-12-05 19:10     ` John S. Denker
2002-12-06  9:16       ` Clemens Ladisch
2002-12-06 10:09         ` Jaroslav Kysela
2002-12-07 15:05           ` Patrick Shirkey
2002-12-06 13:13         ` John S. Denker
2002-12-06 14:22         ` many utils fail for extigy (usb) John S. Denker
2002-12-06  6:48     ` usbaudio won't do 24-bit or 32-bit i/o, and won't do 96000 frames per second Patrick Shirkey
2002-12-06  7:12       ` Patrick Shirkey
2002-12-13 18:19       ` Takashi Iwai
2002-12-14 10:48         ` usbaudio won't do 24-bit or 32-bit i/o Patrick Shirkey
2002-12-16 17:19           ` Takashi Iwai
2002-12-16 18:59             ` Patrick Shirkey
2002-12-16 20:11               ` Patrick Shirkey
2002-12-17 15:28               ` Takashi Iwai
2002-12-20 22:00                 ` Patrick Shirkey
2002-12-23 13:35                   ` Takashi Iwai
2002-12-23 18:58                     ` Patrick Shirkey
2002-12-05 11:39 ` sb16 gets wedged when doing overlapped i/o (full duplex) John S. Denker
2002-12-05 11:52 ` hard crash when snd-ice1712 loads John S. Denker
2002-12-05 17:42   ` Jaroslav Kysela
2002-12-05 23:10   ` Scott Bahling
2002-12-05 11:57 ` alsactl and alsamixer fail for extigy John S. Denker
2002-12-09 14:51   ` Takashi Iwai
2002-12-05 12:07 ` sb16 gets wedged when doing overlapped i/o (full duplex) Uros Bizjak
2002-12-05 13:45   ` John S. Denker
2002-12-05 14:55     ` Uros Bizjak
2002-12-05 17:47       ` Jaroslav Kysela
2002-12-05 18:33       ` John S. Denker
2002-12-06  7:14         ` Uros Bizjak
2002-12-06 14:08           ` John S. Denker
2002-12-06  0:41       ` cs4239 errs on full duplex (provoked by overruns?) John S. Denker
2002-12-05 15:23     ` sb16 gets wedged when doing overlapped i/o (full duplex) Paul Davis
2002-12-09 14:30       ` Takashi Iwai
2002-12-09 14:54     ` documentation or lack thereof John S. Denker
2002-12-09 15:05       ` Takashi Iwai
2002-12-09 15:23       ` ljp
2002-12-09 16:23       ` Paul Davis
2002-12-10 17:59         ` Patrick Shirkey
2002-12-10 22:28         ` soundcard matrix: broken links etc John S. Denker
2002-12-11  2:52           ` Patrick Shirkey
2002-12-11  4:05         ` John S. Denker
2002-12-11  5:27           ` Patrick Shirkey
2002-12-14 15:59         ` John S. Denker

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