+/* Line6 Helix series don't support the UAC2_CS_RANGE usb function
+ * call. Return a static table of known clock rates.
+ */
+static int line6_parse_audio_format_rates_quirk(struct snd_usb_audio *chip,
+ struct audioformat *fp)
+{
+ switch (chip->usb_id) {
+ case USB_ID(0x0E41, 0x4241): /* Line6 Helix */
+ case USB_ID(0x0E41, 0x4242): /* Line6 Helix Rack */
+ case USB_ID(0x0E41, 0x4244): /* Line6 Helix LT */
+ case USB_ID(0x0E41, 0x4246): /* Line6 HX-Stomp */
+ /* supported rates: 48Khz */
+ kfree(fp->rate_table);
+ fp->rate_table = kmalloc(sizeof(int), GFP_KERNEL);
+ if (!fp->rate_table)
+ return -ENOMEM;
+ fp->nr_rates = 1;
+ fp->rate_min = 48000;
+ fp->rate_max = 48000;
+ fp->rates = SNDRV_PCM_RATE_48000;
+ fp->rate_table[0] = 48000;
+ return 0;
+ }
+
+ return -ENODEV;
+}
+