[ALSA] oxygen: make PCM limits configurable

Add a callback to the model structure to allow modification of the
hardware PCM limits.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

1 files changed, 3 insertions, 0 deletions

diff --git a/sound/pci/oxygen/oxygen.h b/sound/pci/oxygen/oxygen.h
index 7278c1563597..602105ce2947 100644
--- a/sound/pci/oxygen/oxygen.h
+++ b/sound/pci/oxygen/oxygen.h
@@ -34,6 +34,7 @@ enum {
 struct pci_dev;
 struct snd_card;
 struct snd_pcm_substream;
+struct snd_pcm_hardware;
 struct snd_pcm_hw_params;
 struct snd_kcontrol_new;
 struct snd_rawmidi;
@@ -75,6 +76,8 @@ struct oxygen_model {
         int (*control_filter)(struct snd_kcontrol_new *template);
         int (*mixer_init)(struct oxygen *chip);
         void (*cleanup)(struct oxygen *chip);
+        void (*pcm_hardware_filter)(unsigned int channel,
+                                    struct snd_pcm_hardware *hardware);
         void (*set_dac_params)(struct oxygen *chip,
                                struct snd_pcm_hw_params *params);
         void (*set_adc_params)(struct oxygen *chip,