char/xillybus/xillyusb.c

1239 static int xillyusb_open(struct inode *inode, struct file *filp)
1260 	filp->private_data = chan;
1269 	if (((filp->f_mode & FMODE_READ) && !chan->readable) ||
1270 	    ((filp->f_mode & FMODE_WRITE) && !chan->writable))
1273 	if ((filp->f_flags & O_NONBLOCK) && (filp->f_mode & FMODE_READ) &&
1280 	if ((filp->f_flags & O_NONBLOCK) && (filp->f_mode & FMODE_WRITE) &&
1289 	if (((filp->f_mode & FMODE_READ) && chan->open_for_read) ||
1290 	    ((filp->f_mode & FMODE_WRITE) && chan->open_for_write))
1293 	if (filp->f_mode & FMODE_READ)
1296 	if (filp->f_mode & FMODE_WRITE)
1301 	if (filp->f_mode & FMODE_WRITE) {
1341 	if (filp->f_mode & FMODE_READ) {
1391 		if (filp->f_flags & O_NONBLOCK)
1416 	if (filp->f_mode & FMODE_READ)
1419 	if (filp->f_mode & FMODE_WRITE)
1434 static ssize_t xillyusb_read(struct file *filp, char __user *userbuf,
1437 	struct xillyusb_channel *chan = filp->private_data;
1551 		if (filp->f_flags & O_NONBLOCK) {
1597 	if (((filp->f_flags & O_NONBLOCK) || chan->poll_used) &&
1609 static int xillyusb_flush(struct file *filp, fl_owner_t id)
1611 	struct xillyusb_channel *chan = filp->private_data;
1614 	if (!(filp->f_mode & FMODE_WRITE))
1645 static ssize_t xillyusb_write(struct file *filp, const char __user *userbuf,
1648 	struct xillyusb_channel *chan = filp->private_data;
1673 		if (filp->f_flags & O_NONBLOCK) {
1709 static int xillyusb_release(struct inode *inode, struct file *filp)
1711 	struct xillyusb_channel *chan = filp->private_data;
1715 	if (filp->f_mode & FMODE_READ) {
1746 	if (filp->f_mode & FMODE_WRITE) {
1785 static loff_t xillyusb_llseek(struct file *filp, loff_t offset, int whence)
1787 	struct xillyusb_channel *chan = filp->private_data;
1789 	loff_t pos = filp->f_pos;
1844 	filp->f_pos = pos;
1849 static __poll_t xillyusb_poll(struct file *filp, poll_table *wait)
1851 	struct xillyusb_channel *chan = filp->private_data;
1855 		poll_wait(filp, &chan->in_fifo->waitq, wait);
1858 		poll_wait(filp, &chan->out_ep->fifo.waitq, wait);