*/
#define NR_UNIX98_PTY_DEFAULT 4096 /* Default maximum for Unix98 ptys */
#define NR_UNIX98_PTY_MAX (1 << MINORBITS) /* Absolute limit */
-#define NR_LDISCS 17
+#define NR_LDISCS 18
/* line disciplines */
#define N_TTY 0
#define N_SYNC_PPP 14 /* synchronous PPP */
#define N_HCI 15 /* Bluetooth HCI UART */
#define N_GIGASET_M101 16 /* Siemens Gigaset M101 serial DECT adapter */
+#define N_SLCAN 17 /* Serial / USB serial CAN Adaptors */
/*
* This character is the same as _POSIX_VDISABLE: it cannot be used as
*/
#define __DISABLED_CHAR '\0'
-/*
- * This is the flip buffer used for the tty driver. The buffer is
- * located in the tty structure, and is used as a high speed interface
- * between the tty driver and the tty line discipline.
- */
-#define TTY_FLIPBUF_SIZE 512
-
struct tty_buffer {
struct tty_buffer *next;
char *char_buf_ptr;
struct tty_bufhead {
struct delayed_work work;
- struct semaphore pty_sem;
spinlock_t lock;
struct tty_buffer *head; /* Queue head */
struct tty_buffer *tail; /* Active buffer */