2012/11/9 Thierry Reding <thierry.reding@avionic-design.de>:
> +/* all fields little endian */
> +struct hdmi_audio_infoframe {
> +       /* PB0 */
> +       u8 csum;
> +
> +       /* PB1 */
> +       unsigned cc:3; /* channel count */
> +       unsigned res1:1;
> +       unsigned ct:4; /* coding type */
> +
> +       /* PB2 */
> +       unsigned ss:2; /* sample size */
> +       unsigned sf:3; /* sample frequency */
> +       unsigned res2:3;
> +
> +       /* PB3 */
> +       unsigned cxt:5; /* coding extention type */
> +       unsigned res3:3;
> +
> +       /* PB4 */
> +       u8 ca; /* channel/speaker allocation */
> +
> +       /* PB5 */
> +       unsigned res5:3;
> +       unsigned lsv:4; /* level shift value */
> +       unsigned dm_inh:1; /* downmix inhibit */
> +
> +       /* PB6-10 reserved */
> +       u8 res6;
> +       u8 res7;
> +       u8 res8;
> +       u8 res9;
> +       u8 res10;
> +} __packed;

I was told it won't work on different endian devices. See
[RFC][PATCH] drm/radeon/hdmi: define struct for AVI infoframe
http://lists.freedesktop.org/archives/dri-devel/2012-May/022544.html

-- 
Rafał
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