[ALSA] usb-audio - set sample rate attribute on Audigy 2 NX endpoints

USB generic driver
The SB Audigy 2 NX does not advertise the sample rate attribute in its
endpoint descriptors although it supports it.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>

1 files changed, 10 insertions, 11 deletions

diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index a5e97d081c3b..da1fe0f0bca0 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -2499,32 +2499,31 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
 
                 /* some quirks for attributes here */
 
-                /* workaround for AudioTrak Optoplay */
-                if (chip->usb_id == USB_ID(0x0a92, 0x0053)) {
+                switch (chip->usb_id) {
+                case USB_ID(0x0a92, 0x0053): /* AudioTrak Optoplay */
                         /* Optoplay sets the sample rate attribute although
                          * it seems not supporting it in fact.
                          */
                         fp->attributes &= ~EP_CS_ATTR_SAMPLE_RATE;
-                }
-
-                /* workaround for M-Audio Audiophile USB */
-                if (chip->usb_id == USB_ID(0x0763, 0x2003)) {
+                        break;
+                case USB_ID(0x041e, 0x3020): /* Creative SB Audigy 2 NX */
+                case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
                         /* doesn't set the sample rate attribute, but supports it */
                         fp->attributes |= EP_CS_ATTR_SAMPLE_RATE;
-                }
-
+                        break;
+                case USB_ID(0x047f, 0x0ca1): /* plantronics headset */
+                case USB_ID(0x077d, 0x07af): /* Griffin iMic (note that there is
+                                                an older model 77d:223) */
                 /*
                  * plantronics headset and Griffin iMic have set adaptive-in
                  * although it's really not...
                  */
-                if (chip->usb_id == USB_ID(0x047f, 0x0ca1) ||
-                    /* Griffin iMic (note that there is an older model 77d:223) */
-                    chip->usb_id == USB_ID(0x077d, 0x07af)) {
                         fp->ep_attr &= ~EP_ATTR_MASK;
                         if (stream == SNDRV_PCM_STREAM_PLAYBACK)
                                 fp->ep_attr |= EP_ATTR_ADAPTIVE;
                         else
                                 fp->ep_attr |= EP_ATTR_SYNC;
+                        break;
                 }
 
                 /* ok, let's parse further... */