staging:iio: buffer example - add lots more runtime parameters
authorJonathan Cameron <jic23@cam.ac.uk>
Fri, 11 Feb 2011 13:09:13 +0000 (13:09 +0000)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 18 Feb 2011 21:22:52 +0000 (13:22 -0800)
Add ability to control delay for event free buffers
Add ability to control length of buffer
Add ability to control how many read cycles occur

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Tested-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/staging/iio/Documentation/generic_buffer.c

index 0befcb89ea3a43ca0fb7d6a6d5aea931a56c75fa..771b23627797f939e424d485e23ef1515ab57f9f 100644 (file)
@@ -29,9 +29,6 @@
 #include <string.h>
 #include "iio_utils.h"
 
-const int buf_len = 128;
-const int num_loops = 2;
-
 /**
  * size_from_channelarray() - calculate the storage size of a scan
  * @channels: the channel info array
@@ -119,6 +116,11 @@ void process_scan(char *data,
 
 int main(int argc, char **argv)
 {
+       unsigned long num_loops = 2;
+       unsigned long timedelay = 1000000;
+       unsigned long buf_len = 128;
+
+
        int ret, c, i, j, toread;
 
        FILE *fp_ev;
@@ -136,10 +138,11 @@ int main(int argc, char **argv)
        char *buffer_access, *buffer_event;
        int scan_size;
        int noevents = 0;
+       char *dummy;
 
        struct iio_channel_info *infoarray;
 
-       while ((c = getopt(argc, argv, "et:n:")) != -1) {
+       while ((c = getopt(argc, argv, "l:w:c:et:n:")) != -1) {
                switch (c) {
                case 'n':
                        device_name = optarg;
@@ -151,6 +154,15 @@ int main(int argc, char **argv)
                case 'e':
                        noevents = 1;
                        break;
+               case 'c':
+                       num_loops = strtoul(optarg, &dummy, 10);
+                       break;
+               case 'w':
+                       timedelay = strtoul(optarg, &dummy, 10);
+                       break;
+               case 'l':
+                       buf_len = strtoul(optarg, &dummy, 10);
+                       break;
                case '?':
                        return -1;
                }
@@ -285,7 +297,7 @@ int main(int argc, char **argv)
                                continue;
                        }
                } else {
-                       usleep(1000);
+                       usleep(timedelay);
                        toread = 64;
                }