[alsa-devel] [PATCH v2 0/7] ALSA: USB-audio: Support Zoom R16 playback

[Takashi Iwai]

On Mon, 19 Oct 2015 08:52:48 +0200,
Ricard Wanderlof wrote:
> 
> V2: Change u32 to __le32 (kbuild test robot warning).
>     Since Zoom R24 most likely behaves as R16 when used as an audio
>     interface, refer to "R16/24" throughout in all comments (no code
>     change).
>     Tested both in Linux 3.16.7 (with appropriate backports) and 4.3.0 .
>     Made changelogs more descriptive.
> 
> The Zoom R16 has a nonstandard playback format where each isochronous packet
> contains a length descriptor in the first four bytes.
> 
> This patch series implements a quirk which involves adding the extra length
> descriptor whenever outgoing isochronous packets are generated.
> 
> The first four patches refactor some code in pcm.c and endpoint.c before
> the actual quirk implementation. A final commit cleans up the entry in
> the quirks table.
> 
> Big thanks to Panu for testing this patch.
> 
> Signed-off-by: Ricard Wanderlof <ricardw at axis.com>
> Tested-by: Panu Matilainen <pmatilai at laiskiainen.org>
> 
> Ricard Wanderlof (7):
>   Break out copying to urb from prepare_playback_urb()
>   Also move out hwptr_done wrap from prepare_playback_urb()
>   Break out creation of silent urbs from prepare_outbound_urb()
>   Add offset parameter to copy_to_urb()
>   Add quirk for Zoom R16/24 playback
>   Adjust max packet size calculation for tx_length_quirk
>   Remove mixer entry from Zoom R16/24 quirk

Applied all patches now.  Thanks.


Takashi


> 
>  sound/usb/card.h         |  1 +
>  sound/usb/endpoint.c     | 73 +++++++++++++++++++++++++++++++++--------------
>  sound/usb/pcm.c          | 74 +++++++++++++++++++++++++++++++++++++-----------
>  sound/usb/quirks-table.h | 14 +++------
>  sound/usb/quirks.c       |  3 ++
>  sound/usb/stream.c       |  1 +
>  sound/usb/usbaudio.h     |  1 +
>  7 files changed, 119 insertions(+), 48 deletions(-)
> 
> -- 
> 2.1.4
>