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@@ -350,6 +350,13 @@ static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt)
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fmt->iface, fmt->altsetting);
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subs->interface = fmt->iface;
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subs->altset_idx = fmt->altset_idx;
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+
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+ /*
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+ * "Playback Design" products need a 50ms delay after setting the
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+ * USB interface.
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+ */
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+ if (le16_to_cpu(dev->descriptor.idVendor) == 0x23ba)
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+ mdelay(50);
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}
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subs->data_endpoint = snd_usb_add_endpoint(subs->stream->chip,
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