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

View File

@ -60,8 +60,8 @@ MODULE_LICENSE("Dual BSD/GPL");
static struct scull_dev *scull_devices; /* allocated in scull_init_module */
#define GIOVA_BLK 3840
#define GIOVA_SLEEP 40000
#define GIOVA_BLK 1920
#define GIOVA_SLEEP 20000
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;
dev_t key;
if (!current->pid) {
printk("Process \"%s\" has no pid\n", current->comm);
if (!current->tgid) {
printk("Process \"%s\" has no tgid\n", current->comm);
return -EINVAL;
}
key = current->pid;
key = current->tgid;
/* look for a scullc device in the list */
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);
schedule();
finish_wait(&dev->inq, &wait);
//memset(buf, 255, count);
return count;
}