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Diffstat (limited to 'sound/usb/card.h')
-rw-r--r--sound/usb/card.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/usb/card.h b/sound/usb/card.h
index afa4f9e9b27a..8a751b4887ea 100644
--- a/sound/usb/card.h
+++ b/sound/usb/card.h
@@ -27,6 +27,7 @@ struct audioformat {
unsigned int nr_rates; /* number of rate table entries */
unsigned int *rate_table; /* rate table */
unsigned char clock; /* associated clock */
+ struct snd_pcm_chmap_elem *chmap; /* (optional) channel map */
};
struct snd_usb_substream;
@@ -109,6 +110,7 @@ struct snd_usb_substream {
struct audioformat *cur_audiofmt; /* current audioformat pointer (for hw_params callback) */
snd_pcm_format_t pcm_format; /* current audio format (for hw_params callback) */
unsigned int channels; /* current number of channels (for hw_params callback) */
+ unsigned int channels_max; /* max channels in the all audiofmts */
unsigned int cur_rate; /* current rate (for hw_params callback) */
unsigned int period_bytes; /* current period bytes (for hw_params callback) */
unsigned int altset_idx; /* USB data format: index of alternate setting */
@@ -126,6 +128,7 @@ struct snd_usb_substream {
struct snd_usb_endpoint *sync_endpoint;
unsigned long flags;
bool need_setup_ep; /* (re)configure EP at prepare? */
+ unsigned int speed; /* USB_SPEED_XXX */
u64 formats; /* format bitmasks (all or'ed) */
unsigned int num_formats; /* number of supported audio formats (list) */