Correct documentation on evemu-play usage

The data should be directed into the program, not given
as argument. Also make evemu-play complain if given two
arguments.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>

2 files changed, 3 insertions, 3 deletions

diff --git a/INSTALL b/INSTALL
index cd69b2b..0870e39 100644
--- a/INSTALL
+++ b/INSTALL
@@ -17,11 +17,11 @@ To record a stream of events, do
 
 To create a device from the properties, do
 
-   sudo ./tools/evemu-create device.properties
+   sudo ./tools/evemu-device device.properties
 
 To replay a stream of events, do
 
-   sudo ./tools/evemu-play /dev/input/eventY device.data
+   sudo ./tools/evemu-play /dev/input/eventY < device.data
 
 To destroy the device, do
 
diff --git a/tools/evemu-play.c b/tools/evemu-play.c
index 54a16d9..286bf6a 100644
--- a/tools/evemu-play.c
+++ b/tools/evemu-play.c
@@ -34,7 +34,7 @@
 int main(int argc, char *argv[])
 {
         int fd;
-        if (argc < 2) {
+        if (argc != 2) {
                 fprintf(stderr, "Usage: %s <device>\n", argv[0]);
                 fprintf(stderr, "\n");
                 fprintf(stderr, "Event data is read from standard input.\n");