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Added mode argument to open functions where it was missing. First part of CTL documentation

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This commit is contained in:
Abramo Bagnara 2001-03-26 12:45:48 +00:00
parent 4bee8c5678
commit 7893ea238d
21 changed files with 570 additions and 276 deletions
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12
src/control/control_hw.c
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@ -259,10 +259,11 @@ snd_ctl_ops_t snd_ctl_hw_ops = {
read: snd_ctl_hw_read,
};
int snd_ctl_hw_open(snd_ctl_t **handle, const char *name, int card)
int snd_ctl_hw_open(snd_ctl_t **handle, const char *name, int card, int mode)
{
int fd, ver;
char filename[32];
int fmode;
snd_ctl_t *ctl;
snd_ctl_hw_t *hw;
@ -270,7 +271,12 @@ int snd_ctl_hw_open(snd_ctl_t **handle, const char *name, int card)
assert(card >= 0 && card < 32);
sprintf(filename, SNDRV_FILE_CONTROL, card);
if ((fd = open(filename, O_RDWR)) < 0) {
fmode = O_RDWR;
if (mode & SND_CTL_NONBLOCK)
fmode |= O_NONBLOCK;
if (mode & SND_CTL_ASYNC)
fmode |= O_ASYNC;
if ((fd = open(filename, fmode)) < 0) {
snd_card_load(card);
if ((fd = open(filename, O_RDWR)) < 0)
return -errno;
@ -335,6 +341,6 @@ int _snd_ctl_hw_open(snd_ctl_t **handlep, char *name, snd_config_t *conf)
}
if (card < 0)
return -EINVAL;
return snd_ctl_hw_open(handlep, name, card);
return snd_ctl_hw_open(handlep, name, card, 0);
}