979 static int btchr_open(struct inode *inode_p, struct file  *file_p)  in btchr_open()  argument
1001     file_p->private_data = data;  in btchr_open()
1008     return nonseekable_open(inode_p, file_p);  in btchr_open()
1011 static int btchr_close(struct inode  *inode_p, struct file   *file_p)  in btchr_close()  argument
1020     data = file_p->private_data;  in btchr_close()
1021     file_p->private_data = NULL;  in btchr_close()
1042 static ssize_t btchr_read(struct file *file_p,  in btchr_read()  argument
1084 static ssize_t btchr_write(struct file *file_p,  in btchr_write()  argument
1089     struct btusb_data *data = file_p->private_data;  in btchr_write()
1137 static unsigned int btchr_poll(struct file *file_p, poll_table *wait)  in btchr_poll()  argument
1139     struct btusb_data *data = file_p->private_data;  in btchr_poll()
1149     poll_wait(file_p, &btchr_read_wait, wait);  in btchr_poll()
1175 static long btchr_ioctl(struct file *file_p, unsigned int cmd, unsigned long arg){  in btchr_ioctl()  argument