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oss: Unbreak mmaping the ability to mmap oss fd on Linux 

Signed-off-by: malc <av1474@comtv.ru>
This commit is contained in:
malc 2009-09-11 10:13:55 +04:00
parent 2637c754cc
commit 2182349d73
1 changed files with 4 additions and 1 deletions
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5
audio/ossaudio.c
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@ -205,13 +205,16 @@ static int oss_open (int in, struct oss_params *req,
struct oss_params *obt, int *pfd) struct oss_params *obt, int *pfd)
{ {
int fd; int fd;
int oflags;
int mmmmssss; int mmmmssss;
audio_buf_info abinfo; audio_buf_info abinfo;
int fmt, freq, nchannels; int fmt, freq, nchannels;
const char *dspname = in ? conf.devpath_in : conf.devpath_out; const char *dspname = in ? conf.devpath_in : conf.devpath_out;
const char *typ = in ? "ADC" : "DAC"; const char *typ = in ? "ADC" : "DAC";
fd = open (dspname, (in ? O_RDONLY : O_WRONLY) | O_NONBLOCK); /* Kludge needed to have working mmap on Linux */
oflags = conf.try_mmap ? O_RDWR : (in ? O_RDONLY : O_WRONLY);
fd = open (dspname, oflags | O_NONBLOCK);
if (-1 == fd) { if (-1 == fd) {
oss_logerr2 (errno, typ, "Failed to open `%s'\n", dspname); oss_logerr2 (errno, typ, "Failed to open `%s'\n", dspname);
return -1; return -1;