From 3e964432f56f05a8ef639902796e476456b230ad Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Tue, 14 Mar 2006 08:06:12 +0100
Subject: [ALSA] usb-audio: add error message about missing split iso support

Modules: USB generic driver

Add an error message for -ENOSYS for situations when split iso support
is needed but not enabled.

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

diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index 45157d3..6fad2c4 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -788,6 +788,10 @@ static const char *usb_error_string(int err)
 		return "device disabled";
 	case -EHOSTUNREACH:
 		return "device suspended";
+#ifndef CONFIG_USB_EHCI_SPLIT_ISO
+	case -ENOSYS:
+		return "enable CONFIG_USB_EHCI_SPLIT_ISO to play through a hub";
+#endif
 	case -EINVAL:
 	case -EAGAIN:
 	case -EFBIG:
-- 
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