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staging:iio: buffer example - add lots more runtime parameters

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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>
This commit is contained in:
Jonathan Cameron 2011-02-11 13:09:13 +00:00 committed by Greg Kroah-Hartman
parent 30268a3da9
commit 96df9799a4
1 changed files with 17 additions and 5 deletions
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22
drivers/staging/iio/Documentation/generic_buffer.c
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@ -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;
}