ralink mt7601 linux driver patch. Take a look into README

README

This patch may not necessarily work - this is a better version at launchpad by Victor Martinez https://code.launchpad.net/~victored/+junk/mt7601U-linux-driver-64bit

after:
sudo make install, 

do 
sudo modprobe mt7601Usta

rt2870-mt7601Usta-kuid_t-kgid_t.patch

--- include/os/rt_linux.h	2013-09-12 13:27:14.000000000 +0800
+++ include/os/rt_linux.h	2014-03-23 11:45:03.907628847 +0800
@@ -279,8 +279,8 @@ typedef struct file* RTMP_OS_FD;
 
 typedef struct _OS_FS_INFO_
 {
-	int				fsuid;
-	int				fsgid;
+	kuid_t				fsuid;
+	kgid_t				fsgid;
 	mm_segment_t	fs;
 } OS_FS_INFO;
 
--- sta/sta_cfg.c	2013-09-12 13:27:14.000000000 +0800
+++ sta/sta_cfg.c	2014-12-15 11:49:50.747843025 +0800
@@ -5763,7 +5763,10 @@
             wrq->u.data.length = strlen(extra) + 1; /* 1: size of '\0' */
             break;
         case SHOW_DRVIER_VERION:
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdate-time"
             snprintf(extra, size, "Driver version-%s, %s %s\n", STA_DRIVER_VERSION, __DATE__, __TIME__ );
+#pragma GCC diagnostic pop
             wrq->u.data.length = strlen(extra) + 1; /* 1: size of '\0' */
             break;
 #ifdef DOT11_N_SUPPORT