From: Clemens Ladisch <clemens@ladisch.de>
Date: Tue, 14 Mar 2006 07:06:12 +0000 (+0100)
Subject: [ALSA] usb-audio: add error message about missing split iso support
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3e964432f56f05a8ef639902796e476456b230ad;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

[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 45157d3cf789..6fad2c40c77c 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: