diff options
| -rw-r--r-- | drivers/staging/serqt_usb2/serqt_usb2.c | 15 | ||||
| -rw-r--r-- | drivers/usb/serial/ark3116.c | 2 | ||||
| -rw-r--r-- | drivers/usb/serial/console.c | 6 | ||||
| -rw-r--r-- | drivers/usb/serial/f81232.c | 2 | ||||
| -rw-r--r-- | drivers/usb/serial/io_edgeport.c | 2 | ||||
| -rw-r--r-- | drivers/usb/serial/io_ti.c | 2 | ||||
| -rw-r--r-- | drivers/usb/serial/mos7720.c | 2 | ||||
| -rw-r--r-- | drivers/usb/serial/mos7840.c | 7 | ||||
| -rw-r--r-- | drivers/usb/serial/opticon.c | 2 | ||||
| -rw-r--r-- | drivers/usb/serial/pl2303.c | 2 | ||||
| -rw-r--r-- | drivers/usb/serial/quatech2.c | 2 | ||||
| -rw-r--r-- | drivers/usb/serial/ssu100.c | 2 | ||||
| -rw-r--r-- | drivers/usb/serial/ti_usb_3410_5052.c | 2 | ||||
| -rw-r--r-- | drivers/usb/serial/usb-serial.c | 123 | ||||
| -rw-r--r-- | drivers/usb/serial/usb_wwan.c | 2 | ||||
| -rw-r--r-- | drivers/usb/serial/whiteheat.c | 2 | ||||
| -rw-r--r-- | include/linux/usb/serial.h | 6 |
17 files changed, 82 insertions, 99 deletions
diff --git a/drivers/staging/serqt_usb2/serqt_usb2.c b/drivers/staging/serqt_usb2/serqt_usb2.c index 4f891dba2faa..880f5c0011f2 100644 --- a/drivers/staging/serqt_usb2/serqt_usb2.c +++ b/drivers/staging/serqt_usb2/serqt_usb2.c @@ -906,7 +906,7 @@ static int qt_open(struct tty_struct *tty, qt_submit_urb_from_open(serial, port); } - dev_dbg(&port->dev, "serial number is %d\n", port->serial->minor); + dev_dbg(&port->dev, "minor number is %d\n", port->minor); dev_dbg(&port->dev, "Bulkin endpoint is %d\n", port->bulk_in_endpointAddress); dev_dbg(&port->dev, @@ -1002,7 +1002,7 @@ static void qt_close(struct usb_serial_port *port) status = 0; tty = tty_port_tty_get(&port->port); - index = tty->index - serial->minor; + index = port->port_number; qt_port = qt_get_port_private(port); port0 = qt_get_port_private(serial->port[0]); @@ -1129,12 +1129,11 @@ static int qt_ioctl(struct tty_struct *tty, { struct usb_serial_port *port = tty->driver_data; struct quatech_port *qt_port = qt_get_port_private(port); - struct usb_serial *serial = get_usb_serial(port, __func__); unsigned int index; dev_dbg(&port->dev, "%s cmd 0x%04x\n", __func__, cmd); - index = tty->index - serial->minor; + index = port->port_number; if (cmd == TIOCMIWAIT) { while (qt_port != NULL) { @@ -1180,7 +1179,7 @@ static void qt_set_termios(struct tty_struct *tty, int baud, divisor, remainder; int status; - index = tty->index - port->serial->minor; + index = port->port_number; switch (cflag & CSIZE) { case CS5: @@ -1296,7 +1295,7 @@ static void qt_break(struct tty_struct *tty, int break_state) u16 index, onoff; unsigned int result; - index = tty->index - serial->minor; + index = port->port_number; qt_port = qt_get_port_private(port); @@ -1325,7 +1324,7 @@ static inline int qt_real_tiocmget(struct tty_struct *tty, int status; unsigned int index; - index = tty->index - serial->minor; + index = port->port_number; status = BoxGetRegister(port->serial, index, MODEM_CONTROL_REGISTER, &mcr); if (status >= 0) { @@ -1364,7 +1363,7 @@ static inline int qt_real_tiocmset(struct tty_struct *tty, int status; unsigned int index; - index = tty->index - serial->minor; + index = port->port_number; status = BoxGetRegister(port->serial, index, MODEM_CONTROL_REGISTER, &mcr); if (status < 0) diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c index 293a7706ba3f..bc77e955cbef 100644 --- a/drivers/usb/serial/ark3116.c +++ b/drivers/usb/serial/ark3116.c @@ -413,7 +413,7 @@ static int ark3116_ioctl(struct tty_struct *tty, /* XXX: Some of these values are probably wrong. */ memset(&serstruct, 0, sizeof(serstruct)); serstruct.type = PORT_16654; - serstruct.line = port->serial->minor; + serstruct.line = port->minor; serstruct.port = port->port_number; serstruct.custom_divisor = 0; serstruct.baud_base = 460800; diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c index 1b811022f1a1..afb50eab2049 100644 --- a/drivers/usb/serial/console.c +++ b/drivers/usb/serial/console.c @@ -108,18 +108,18 @@ static int usb_console_setup(struct console *co, char *options) * no need to check the index here: if the index is wrong, console * code won't call us */ - serial = usb_serial_get_by_index(co->index); - if (serial == NULL) { + port = usb_serial_port_get_by_minor(co->index); + if (port == NULL) { /* no device is connected yet, sorry :( */ pr_err("No USB device connected to ttyUSB%i\n", co->index); return -ENODEV; } + serial = port->serial; retval = usb_autopm_get_interface(serial->interface); if (retval) goto error_get_interface; - port = serial->port[co->index - serial->minor]; tty_port_tty_set(&port->port, NULL); info->port = port; diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c index 3d53039383dd..75e85cbf9e8b 100644 --- a/drivers/usb/serial/f81232.c +++ b/drivers/usb/serial/f81232.c @@ -294,7 +294,7 @@ static int f81232_ioctl(struct tty_struct *tty, case TIOCGSERIAL: memset(&ser, 0, sizeof ser); ser.type = PORT_16654; - ser.line = port->serial->minor; + ser.line = port->minor; ser.port = port->port_number; ser.baud_base = 460800; diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index 0c27ff3d2e8f..dc2803b5eb09 100644 --- a/drivers/usb/serial/io_edgeport.c +++ b/drivers/usb/serial/io_edgeport.c @@ -1569,7 +1569,7 @@ static int get_serial_info(struct edgeport_port *edge_port, memset(&tmp, 0, sizeof(tmp)); tmp.type = PORT_16550A; - tmp.line = edge_port->port->serial->minor; + tmp.line = edge_port->port->minor; tmp.port = edge_port->port->port_number; tmp.irq = 0; tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index d32bf2b7f988..60054e72b75b 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -2363,7 +2363,7 @@ static int get_serial_info(struct edgeport_port *edge_port, memset(&tmp, 0, sizeof(tmp)); tmp.type = PORT_16550A; - tmp.line = edge_port->port->serial->minor; + tmp.line = edge_port->port->minor; tmp.port = edge_port->port->port_number; tmp.irq = 0; tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index f79ae7fe37ff..51da424327b0 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -1854,7 +1854,7 @@ static int get_serial_info(struct moschip_port *mos7720_port, memset(&tmp, 0, sizeof(tmp)); tmp.type = PORT_16550A; - tmp.line = mos7720_port->port->serial->minor; + tmp.line = mos7720_port->port->minor; tmp.port = mos7720_port->port->port_number; tmp.irq = 0; tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index f981b08ff32f..0a818b238508 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -1057,7 +1057,7 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port) * structures were not set up at that time.) */ dev_dbg(&port->dev, "port number is %d\n", port->port_number); - dev_dbg(&port->dev, "minor number is %d\n", port->serial->minor); + dev_dbg(&port->dev, "minor number is %d\n", port->minor); dev_dbg(&port->dev, "Bulkin endpoint is %d\n", port->bulk_in_endpointAddress); dev_dbg(&port->dev, "BulkOut endpoint is %d\n", port->bulk_out_endpointAddress); dev_dbg(&port->dev, "Interrupt endpoint is %d\n", port->interrupt_in_endpointAddress); @@ -2068,7 +2068,7 @@ static int mos7840_get_serial_info(struct moschip_port *mos7840_port, memset(&tmp, 0, sizeof(tmp)); tmp.type = PORT_16550A; - tmp.line = mos7840_port->port->serial->minor; + tmp.line = mos7840_port->port->minor; tmp.port = mos7840_port->port->port_number; tmp.irq = 0; tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; @@ -2246,9 +2246,8 @@ static int mos7840_port_probe(struct usb_serial_port *port) * usb-serial.c:get_free_serial() and cannot therefore be used * to index device instances */ mos7840_port->port_num = pnum + 1; - dev_dbg(&port->dev, "port->serial->minor = %d\n", port->serial->minor); + dev_dbg(&port->dev, "port->minor = %d\n", port->minor); dev_dbg(&port->dev, "mos7840_port->port_num = %d\n", mos7840_port->port_num); - dev_dbg(&port->dev, "serial->minor = %d\n", serial->minor); if (mos7840_port->port_num == 1) { mos7840_port->SpRegOffset = 0x0; diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c index 6e1ee85e44f2..cbe779f578f9 100644 --- a/drivers/usb/serial/opticon.c +++ b/drivers/usb/serial/opticon.c @@ -348,7 +348,7 @@ static int get_serial_info(struct usb_serial_port *port, /* fake emulate a 16550 uart to make userspace code happy */ tmp.type = PORT_16550A; - tmp.line = port->serial->minor; + tmp.line = port->minor; tmp.port = 0; tmp.irq = 0; tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 042ae6be3cbe..cb6bbed374f2 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -639,7 +639,7 @@ static int pl2303_ioctl(struct tty_struct *tty, case TIOCGSERIAL: memset(&ser, 0, sizeof ser); ser.type = PORT_16654; - ser.line = port->serial->minor; + ser.line = port->minor; ser.port = port->port_number; ser.baud_base = 460800; diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c index f2ca7d80c8a0..d99743290fc1 100644 --- a/drivers/usb/serial/quatech2.c +++ b/drivers/usb/serial/quatech2.c @@ -465,7 +465,7 @@ static int get_serial_info(struct usb_serial_port *port, return -EFAULT; memset(&tmp, 0, sizeof(tmp)); - tmp.line = port->serial->minor; + tmp.line = port->minor; tmp.port = 0; tmp.irq = 0; tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c index 5b62dbbdf996..e5750be49054 100644 --- a/drivers/usb/serial/ssu100.c +++ b/drivers/usb/serial/ssu100.c @@ -323,7 +323,7 @@ static int get_serial_info(struct usb_serial_port *port, return -EFAULT; memset(&tmp, 0, sizeof(tmp)); - tmp.line = port->serial->minor; + tmp.line = port->minor; tmp.port = 0; tmp.irq = 0; tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 07e5c9bec48a..c9c46d6f8c80 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -1308,7 +1308,7 @@ static int ti_get_serial_info(struct ti_port *tport, memset(&ret_serial, 0, sizeof(ret_serial)); ret_serial.type = PORT_16550A; - ret_serial.line = port->serial->minor; + ret_serial.line = port->minor; ret_serial.port = port->port_number; ret_serial.flags = tport->tp_flags; ret_serial.xmit_fifo_size = TI_WRITE_BUF_SIZE; diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index a47fa715aaba..e2e131f85002 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -37,6 +37,7 @@ #include <linux/usb.h> #include <linux/usb/serial.h> #include <linux/kfifo.h> +#include <linux/idr.h> #include "pl2303.h" #define DRIVER_AUTHOR "Greg Kroah-Hartman <gregkh@linuxfoundation.org>" @@ -49,82 +50,75 @@ drivers depend on it. */ -static struct usb_serial *serial_table[SERIAL_TTY_MINORS]; +static DEFINE_IDR(serial_minors); static DEFINE_MUTEX(table_lock); static LIST_HEAD(usb_serial_driver_list); /* - * Look up the serial structure. If it is found and it hasn't been - * disconnected, return with its disc_mutex held and its refcount - * incremented. Otherwise return NULL. + * Look up the serial port structure. If it is found and it hasn't been + * disconnected, return with the parent usb_serial structure's disc_mutex held + * and its refcount incremented. Otherwise return NULL. */ -struct usb_serial *usb_serial_get_by_index(unsigned index) +struct usb_serial_port *usb_serial_port_get_by_minor(unsigned minor) { struct usb_serial *serial; + struct usb_serial_port *port; mutex_lock(&table_lock); - serial = serial_table[index]; - - if (serial) { - mutex_lock(&serial->disc_mutex); - if (serial->disconnected) { - mutex_unlock(&serial->disc_mutex); - serial = NULL; - } else { - kref_get(&serial->kref); - } + port = idr_find(&serial_minors, minor); + if (!port) + goto exit; + + serial = port->serial; + mutex_lock(&serial->disc_mutex); + if (serial->disconnected) { + mutex_unlock(&serial->disc_mutex); + port = NULL; + } else { + kref_get(&serial->kref); } +exit: mutex_unlock(&table_lock); - return serial; + return port; } -static struct usb_serial *get_free_serial(struct usb_serial *serial, - int num_ports, unsigned int *minor) +static int allocate_minors(struct usb_serial *serial, int num_ports) { + struct usb_serial_port *port; unsigned int i, j; - int good_spot; + int minor; dev_dbg(&serial->interface->dev, "%s %d\n", __func__, num_ports); - *minor = 0; mutex_lock(&table_lock); - for (i = 0; i < SERIAL_TTY_MINORS; ++i) { - if (serial_table[i]) - continue; - - good_spot = 1; - for (j = 1; j <= num_ports-1; ++j) - if ((i+j >= SERIAL_TTY_MINORS) || (serial_table[i+j])) { - good_spot = 0; - i += j; - break; - } - if (good_spot == 0) - continue; - - *minor = i; - j = 0; - dev_dbg(&serial->interface->dev, "%s - minor base = %d\n", __func__, *minor); - for (i = *minor; (i < (*minor + num_ports)) && (i < SERIAL_TTY_MINORS); ++i, ++j) { - serial_table[i] = serial; - serial->port[j]->minor = i; - serial->port[j]->port_number = i - *minor; - } - mutex_unlock(&table_lock); - return serial; + for (i = 0; i < num_ports; ++i) { + port = serial->port[i]; + minor = idr_alloc(&serial_minors, port, 0, 0, GFP_KERNEL); + if (minor < 0) + goto error; + port->minor = minor; + port->port_number = i; } + serial->minors_reserved = 1; mutex_unlock(&table_lock); - return NULL; + return 0; +error: + /* unwind the already allocated minors */ + for (j = 0; j < i; ++j) + idr_remove(&serial_minors, serial->port[j]->minor); + mutex_unlock(&table_lock); + return minor; } -static void return_serial(struct usb_serial *serial) +static void release_minors(struct usb_serial *serial) { int i; mutex_lock(&table_lock); for (i = 0; i < serial->num_ports; ++i) - serial_table[serial->minor + i] = NULL; + idr_remove(&serial_minors, serial->port[i]->minor); mutex_unlock(&table_lock); + serial->minors_reserved = 0; } static void destroy_serial(struct kref *kref) @@ -136,8 +130,8 @@ static void destroy_serial(struct kref *kref) serial = to_usb_serial(kref); /* return the minor range that this device had */ - if (serial->minor != SERIAL_TTY_NO_MINOR) - return_serial(serial); + if (serial->minors_reserved) + release_minors(serial); if (serial->attached && serial->type->release) serial->type->release(serial); @@ -186,13 +180,11 @@ static int serial_install(struct tty_driver *driver, struct tty_struct *tty) struct usb_serial_port *port; int retval = -ENODEV; - serial = usb_serial_get_by_index(idx); - if (!serial) + port = usb_serial_port_get_by_minor(idx); + if (!port) return retval; - port = serial->port[idx - serial->minor]; - if (!port) - goto error_no_port; + serial = port->serial; if (!try_module_get(serial->type->driver.owner)) goto error_module_get; @@ -219,7 +211,6 @@ static int serial_install(struct tty_driver *driver, struct tty_struct *tty) error_get_interface: module_put(serial->type->driver.owner); error_module_get: - error_no_port: usb_serial_put(serial); mutex_unlock(&serial->disc_mutex); return retval; @@ -453,14 +444,16 @@ static int serial_break(struct tty_struct *tty, int break_state) static int serial_proc_show(struct seq_file *m, void *v) { struct usb_serial *serial; + struct usb_serial_port *port; int i; char tmp[40]; seq_puts(m, "usbserinfo:1.0 driver:2.0\n"); for (i = 0; i < SERIAL_TTY_MINORS; ++i) { - serial = usb_serial_get_by_index(i); - if (serial == NULL) + port = usb_serial_port_get_by_minor(i); + if (port == NULL) continue; + serial = port->serial; seq_printf(m, "%d:", i); if (serial->type->driver.owner) @@ -472,7 +465,7 @@ static int serial_proc_show(struct seq_file *m, void *v) le16_to_cpu(serial->dev->descriptor.idVendor), le16_to_cpu(serial->dev->descriptor.idProduct)); seq_printf(m, " num_ports:%d", serial->num_ports); - seq_printf(m, " port:%d", i - serial->minor + 1); + seq_printf(m, " port:%d", port->port_number); usb_make_path(serial->dev, tmp, sizeof(tmp)); seq_printf(m, " path:%s", tmp); @@ -614,7 +607,7 @@ static struct usb_serial *create_serial(struct usb_device *dev, serial->interface = usb_get_intf(interface); kref_init(&serial->kref); mutex_init(&serial->disc_mutex); - serial->minor = SERIAL_TTY_NO_MINOR; + serial->minors_reserved = 0; return serial; } @@ -723,7 +716,6 @@ static int usb_serial_probe(struct usb_interface *interface, struct usb_endpoint_descriptor *bulk_out_endpoint[MAX_NUM_PORTS]; struct usb_serial_driver *type = NULL; int retval; - unsigned int minor; int buffer_size; int i; int j; @@ -1040,11 +1032,10 @@ static int usb_serial_probe(struct usb_interface *interface, */ serial->disconnected = 1; - if (get_free_serial(serial, num_ports, &minor) == NULL) { - dev_err(ddev, "No more free serial devices\n"); + if (allocate_minors(serial, num_ports)) { + dev_err(ddev, "No more free serial minor numbers\n"); goto probe_error; } - serial->minor = minor; /* register all of the individual ports with the driver core */ for (i = 0; i < num_ports; ++i) { @@ -1060,7 +1051,7 @@ static int usb_serial_probe(struct usb_interface *interface, serial->disconnected = 0; - usb_serial_console_init(minor); + usb_serial_console_init(serial->port[0]->minor); exit: module_put(type->driver.owner); return 0; @@ -1224,7 +1215,6 @@ static struct usb_driver usb_serial_driver = { static int __init usb_serial_init(void) { - int i; int result; usb_serial_tty_driver = alloc_tty_driver(SERIAL_TTY_MINORS); @@ -1232,9 +1222,6 @@ static int __init usb_serial_init(void) return -ENOMEM; /* Initialize our global data */ - for (i = 0; i < SERIAL_TTY_MINORS; ++i) - serial_table[i] = NULL; - result = bus_register(&usb_serial_bus_type); if (result) { pr_err("%s - registering bus driver failed\n", __func__); diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c index eacc27dc4657..8257d30c4072 100644 --- a/drivers/usb/serial/usb_wwan.c +++ b/drivers/usb/serial/usb_wwan.c @@ -124,7 +124,7 @@ static int get_serial_info(struct usb_serial_port *port, return -EFAULT; memset(&tmp, 0, sizeof(tmp)); - tmp.line = port->serial->minor; + tmp.line = port->minor; tmp.port = port->port_number; tmp.baud_base = tty_get_baud_rate(port->port.tty); tmp.close_delay = port->port.close_delay / 10; diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index 7eb34cd6b579..36a7740e827c 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -461,7 +461,7 @@ static int whiteheat_ioctl(struct tty_struct *tty, case TIOCGSERIAL: memset(&serstruct, 0, sizeof(serstruct)); serstruct.type = PORT_16654; - serstruct.line = port->serial->minor; + serstruct.line = port->minor; serstruct.port = port->port_number; serstruct.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; serstruct.xmit_fifo_size = kfifo_size(&port->write_fifo); diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index 3fa68b615ac1..9254c80a1cf8 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -21,7 +21,6 @@ #define SERIAL_TTY_MAJOR 188 /* Nice legal number now */ #define SERIAL_TTY_MINORS 254 /* loads of devices :) */ -#define SERIAL_TTY_NO_MINOR 255 /* No minor was assigned */ /* The maximum number of ports one device can grab at once */ #define MAX_NUM_PORTS 8 @@ -142,7 +141,6 @@ static inline void usb_set_serial_port_data(struct usb_serial_port *port, * @dev: pointer to the struct usb_device for this device * @type: pointer to the struct usb_serial_driver for this device * @interface: pointer to the struct usb_interface for this device - * @minor: the starting minor number for this device * @num_ports: the number of ports this device has * @num_interrupt_in: number of interrupt in endpoints we have * @num_interrupt_out: number of interrupt out endpoints we have @@ -161,7 +159,7 @@ struct usb_serial { unsigned char disconnected:1; unsigned char suspending:1; unsigned char attached:1; - unsigned char minor; + unsigned char minors_reserved:1; unsigned char num_ports; unsigned char num_port_pointers; char num_interrupt_in; @@ -321,7 +319,7 @@ static inline void usb_serial_console_disconnect(struct usb_serial *serial) {} #endif /* Functions needed by other parts of the usbserial core */ -extern struct usb_serial *usb_serial_get_by_index(unsigned int minor); +extern struct usb_serial_port *usb_serial_port_get_by_minor(unsigned int minor); extern void usb_serial_put(struct usb_serial *serial); extern int usb_serial_generic_open(struct tty_struct *tty, struct usb_serial_port *port); |