[Lucid] [Patch 3/3] SRU: Fix usbdux driver timeout and lockups

Andy Whitcroft apw at canonical.com
Fri Apr 16 18:12:55 UTC 2010


On Fri, Apr 16, 2010 at 10:25:45AM -0700, Leann Ogasawara wrote:
> >From 9fd5520c6803c77052a78f10ae1eb0bfe2358410 Mon Sep 17 00:00:00 2001
> From: Bernd Porr <berndporr at f2s.com>
> Date: Fri, 27 Nov 2009 12:07:48 +0000
> Subject: [PATCH 3/3] Staging: comedi: removed "depricated" from COMEDI_CB_BLOCK
> 
> BugLink: http://bugs.launchpad.net/bugs/483343
> 
> The flag COMEDI_CB_BLOCK was marked as "depricated in the header file".
> However, this flag is important to wake up the data-reader (and writer)
> after new data has arrived from(for) the DAQ card.
> 
> Signed-off-by: Bernd Porr <berndporr at f2s.com>
> Signed-off-by: Greg Kroah-Hartman <gregkh at suse.de>
> 
> (cherry picked from commit d103bef45180892515345e761f42db5601de9846 upstream)
> 
> Signed-off-by: Leann Ogasawara <leann.ogasawara at canonical.com>
> ---
>  drivers/staging/comedi/comedi.h |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/staging/comedi/comedi.h b/drivers/staging/comedi/comedi.h
> index 957b640..fc36f2a 100644
> --- a/drivers/staging/comedi/comedi.h
> +++ b/drivers/staging/comedi/comedi.h
> @@ -455,7 +455,7 @@ extern "C" {
>  
>  #define COMEDI_CB_EOS		1	/* end of scan */
>  #define COMEDI_CB_EOA		2	/* end of acquisition */
> -#define COMEDI_CB_BLOCK		4	/* DEPRECATED: convenient block size */
> +#define COMEDI_CB_BLOCK		4	/* data has arrived: wakes up read() / write() */
>  #define COMEDI_CB_EOBUF		8	/* DEPRECATED: end of buffer */
>  #define COMEDI_CB_ERROR		16	/* card error during acquisition */
>  #define COMEDI_CB_OVERFLOW	32	/* buffer overflow/underflow */

Essentially a noop.

Acked-by: Andy Whitcroft <apw at canonical.com>

-apw




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