[alsa-cvslog] alsa-driver: Add a dummy linux/latency.h for older kernels

[Takashi I. <ti...@su...>]

changeset:   3144:65bf954ea4a453c2460388f8077529eb8c6ff5cb
user:        tiwai
date:        Wed Oct 04 17:09:03 2006 +0200
files:       configure.in include/latency_compat.h
description:
Add a dummy linux/latency.h for older kernels

Added a dummy linux/latency.h for older kernels.


diff -r 0bd340ee604e0c236461c8edb3a4408703482f23 -r 65bf954ea4a453c2460388f8077529eb8c6ff5cb configure.in
--- a/configure.in	Wed Oct 04 17:08:20 2006 +0200
+++ b/configure.in	Wed Oct 04 17:09:03 2006 +0200
@@ -651,6 +651,8 @@ CHECK_KERNEL_HEADER(linux/bitmap.h, [#in
 CHECK_KERNEL_HEADER(linux/bitmap.h, [#include \"bitmap_compat.h\"
 ])
 CHECK_KERNEL_HEADER(linux/mutex.h, [#include \"mutex_compat.h\"
+])
+CHECK_KERNEL_HEADER(linux/latency.h, [#include \"latency_compat.h\"
 ])
 
 dnl Check for dump_stack
diff -r 0bd340ee604e0c236461c8edb3a4408703482f23 -r 65bf954ea4a453c2460388f8077529eb8c6ff5cb include/latency_compat.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/latency_compat.h	Wed Oct 04 17:09:03 2006 +0200
@@ -0,0 +1,15 @@
+#ifndef __LATENCY_COMPAT_H
+#define __LATENCY_COMPAT_H
+
+static inline void set_acceptable_latency(char *identifier, int usecs) {}
+static inline void modify_acceptable_latency(char *identifier, int usecs) {}
+static inline void remove_acceptable_latency(char *identifier) {}
+static inline void synchronize_acceptable_latency(void) {}
+static inline int system_latency_constraint(void) {return 0;}
+
+static inline int register_latency_notifier(struct notifier_block * nb) {return 0;}
+static inline int unregister_latency_notifier(struct notifier_block * nb) {return 0;}
+
+#define INFINITE_LATENCY 1000000
+
+#endif