From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 26 Jul 2007 19:55:51 +0000 (+0000)
Subject: Disable memory mapping if we open the device in O_WRONLY. Unfortunately we cannot... 
X-Git-Tag: v0.9.11~63^2~1^2~417
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8e4660a0b5b34ae465fa3765c68dd8f2d276956f;p=platform%2Fupstream%2Fpulseaudio.git

Disable memory mapping if we open the device in O_WRONLY. Unfortunately we cannot do mmap() in Linux without opening the device for reading as well.

git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/lennart@1549 fefdeb5f-60dc-0310-8127-8f9354f1896f
---

diff --git a/src/modules/module-oss.c b/src/modules/module-oss.c
index b210c17..96e0c3c 100644
--- a/src/modules/module-oss.c
+++ b/src/modules/module-oss.c
@@ -1078,10 +1078,15 @@ int pa__init(pa_core *c, pa_module*m) {
         goto fail;
 
     if (use_mmap && (!(caps & DSP_CAP_MMAP) || !(caps & DSP_CAP_TRIGGER))) {
-        pa_log("OSS device not mmap capable, falling back to UNIX read/write mode");
+        pa_log_info("OSS device not mmap capable, falling back to UNIX read/write mode.");
         use_mmap = 0;
     }
     
+    if (use_mmap && mode == O_WRONLY) {
+        pa_log_info("Device opened for write only, cannot do memory mapping, falling back to UNIX read/write mode.");
+        use_mmap = 0;
+    }
+
     if (pa_oss_get_hw_description(p, hwdesc, sizeof(hwdesc)) >= 0)
         pa_log_info("Hardware name is '%s'.", hwdesc);
     else