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skypopen: slightly improve OSS audio driver

This commit is contained in:
Giovanni Maruzzelli 2010-12-12 13:39:03 -06:00
parent 7e047c3fd1
commit 0e83cbe5ca
1 changed files with 7 additions and 5 deletions
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12
src/mod/endpoints/mod_skypopen/oss/main.c
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@ -60,8 +60,8 @@ MODULE_LICENSE("Dual BSD/GPL");
static struct scull_dev *scull_devices; /* allocated in scull_init_module */ static struct scull_dev *scull_devices; /* allocated in scull_init_module */
#define GIOVA_BLK 3840 #define GIOVA_BLK 1920
#define GIOVA_SLEEP 40000 #define GIOVA_SLEEP 20000
void my_timer_callback_inq( unsigned long data ) void my_timer_callback_inq( unsigned long data )
{ {
@ -130,11 +130,11 @@ static int scull_c_open(struct inode *inode, struct file *filp)
struct scull_dev *dev; struct scull_dev *dev;
dev_t key; dev_t key;
if (!current->pid) { if (!current->tgid) {
printk("Process \"%s\" has no pid\n", current->comm); printk("Process \"%s\" has no tgid\n", current->comm);
return -EINVAL; return -EINVAL;
} }
key = current->pid; key = current->tgid;
/* look for a scullc device in the list */ /* look for a scullc device in the list */
spin_lock(&scull_c_lock); spin_lock(&scull_c_lock);
@ -174,6 +174,8 @@ ssize_t scull_read(struct file *filp, char __user *buf, size_t count,
prepare_to_wait(&dev->inq, &wait, TASK_INTERRUPTIBLE); prepare_to_wait(&dev->inq, &wait, TASK_INTERRUPTIBLE);
schedule(); schedule();
finish_wait(&dev->inq, &wait); finish_wait(&dev->inq, &wait);
//memset(buf, 255, count);
return count; return count;
} }