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commit cadb77d99e314e42c3eb02d016e9d90136ec6959
Author: Alexander Gordeev <lasaine@lvk.cs.msu.su>
Date:   Thu Jan 27 06:39:16 2011 +0300

    fix timerfd initialization
    
    sys/timerfd.h defines TFD_NONBLOCK as 0x800 but in kernel TFD_NONBLOCK
    is an alias for O_NONBLOCK which is defined in arch-specific fcntl.h.
    While it's still 0x800 for most of archs but for mips it's 0x80. So
    timerfd_create(..., TFD_NONBLOCK) returns -EINVAL because of that. Fix
    this by using O_NONBLOCK instead.
    
    Signed-off-by: Alexander Gordeev <lasaine@lvk.cs.msu.su>

--- a/libusb/io.c
+++ b/libusb/io.c
@@ -20,6 +20,7 @@
 
 #include <config.h>
 #include <errno.h>
+#include <fcntl.h>
 #include <signal.h>
 #include <stdint.h>
 #include <stdlib.h>
@@ -1072,7 +1073,7 @@ int usbi_io_init(struct libusb_context *
 
 #ifdef USBI_TIMERFD_AVAILABLE
 	ctx->timerfd = timerfd_create(usbi_backend->get_timerfd_clockid(),
-		TFD_NONBLOCK);
+		O_NONBLOCK);
 	if (ctx->timerfd >= 0) {
 		usbi_dbg("using timerfd for timeouts");
 		r = usbi_add_pollfd(ctx, ctx->timerfd, POLLIN);