diff --git a/libs/audio/targets/snd_oss.c b/libs/audio/targets/snd_oss.c
index ff401a20d..ff578aaa2 100644
--- a/libs/audio/targets/snd_oss.c
+++ b/libs/audio/targets/snd_oss.c
@@ -108,6 +108,7 @@ SNDDMA_Init (void)
 	int         caps;
 	int         retries = 3;
 	int         omode = O_WRONLY;
+	int         mmmode = PROT_WRITE;
 
 	snd_inited = 0;
 
@@ -115,8 +116,10 @@ SNDDMA_Init (void)
 	if (snd_device->string[0])
 		snd_dev = snd_device->string;
 
-	if (snd_oss_rw->int_val)
+	if (snd_oss_rw->int_val) {
 	    omode = O_RDWR;
+		mmmode |= PROT_READ;
+	}
 
 	audio_fd = open (snd_dev, omode);
 	if (audio_fd < 0) {					// Failed open, retry up to 3 times
@@ -124,7 +127,7 @@ SNDDMA_Init (void)
 		while ((audio_fd < 0) && retries-- &&
 			   ((errno == EAGAIN) || (errno == EBUSY))) {
 			sleep (1);
-			audio_fd = open (snd_dev, O_RDWR);
+			audio_fd = open (snd_dev, omode);
 		}
 		if (audio_fd < 0) {
 			perror (snd_dev);
@@ -199,7 +202,7 @@ SNDDMA_Init (void)
 	// memory map the dma buffer
 	shm->buffer = (unsigned char *) mmap (NULL, info.fragstotal
 										  * info.fragsize,
-										  PROT_READ | PROT_WRITE,
+										  mmmode,
 										  MAP_FILE | MAP_SHARED, audio_fd, 0);
 
 	if (shm->buffer == MAP_FAILED) {