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Commit 30268a3d authored by Jonathan Cameron's avatar Jonathan Cameron Committed by Greg Kroah-Hartman
Browse files

staging:iio: update example to handle case with no ring events 



Signed-off-by: default avatarJonathan Cameron <jic23@cam.ac.uk>
Tested-by: default avatarMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent b949793b

drivers/staging/iio/Documentation/generic_buffer.c

+29 −16
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ 
#include <sys/stat.h>

#include <sys/dir.h>

#include <linux/types.h>

#include <string.h>

#include "iio_utils.h"



const int buf_len = 128;
@@ -134,10 +135,11 @@ int main(int argc, char **argv) 
	int dev_num, trig_num;

	char *buffer_access, *buffer_event;

	int scan_size;

	int noevents = 0;



	struct iio_channel_info *infoarray;



	while ((c = getopt(argc, argv, "t:n:")) != -1) {

	while ((c = getopt(argc, argv, "et:n:")) != -1) {

		switch (c) {

		case 'n':

			device_name = optarg;
@@ -146,6 +148,9 @@ int main(int argc, char **argv) 
			trigger_name = optarg;

			datardytrigger = 0;

			break;

		case 'e':

			noevents = 1;

			break;

		case '?':

			return -1;

		}
@@ -260,7 +265,10 @@ int main(int argc, char **argv) 


	/* Wait for events 10 times */

	for (j = 0; j < num_loops; j++) {

		read_size = fread(&dat, 1, sizeof(struct iio_event_data),

		if (!noevents) {

			read_size = fread(&dat,

					1,

					sizeof(struct iio_event_data),

					fp_ev);

			switch (dat.id) {

			case IIO_EVENT_CODE_RING_100_FULL:
@@ -276,6 +284,11 @@ int main(int argc, char **argv) 
				printf("Unexpecteded event code\n");

				continue;

			}

		} else {

			usleep(1000);

			toread = 64;

		}



		read_size = read(fp,

				 data,

				 toread*scan_size);