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-rw-r--r--include/linux/usb/audio.h53
-rw-r--r--include/linux/usb/midi.h112
-rw-r--r--include/linux/usb/otg.h131
-rw-r--r--include/linux/usb/serial.h300
4 files changed, 596 insertions, 0 deletions
diff --git a/include/linux/usb/audio.h b/include/linux/usb/audio.h
new file mode 100644
index 000000000000..6bd235994dc2
--- /dev/null
+++ b/include/linux/usb/audio.h
@@ -0,0 +1,53 @@
1/*
2 * <linux/usb/audio.h> -- USB Audio definitions.
3 *
4 * Copyright (C) 2006 Thumtronics Pty Ltd.
5 * Developed for Thumtronics by Grey Innovation
6 * Ben Williamson <ben.williamson@greyinnovation.com>
7 *
8 * This software is distributed under the terms of the GNU General Public
9 * License ("GPL") version 2, as published by the Free Software Foundation.
10 *
11 * This file holds USB constants and structures defined
12 * by the USB Device Class Definition for Audio Devices.
13 * Comments below reference relevant sections of that document:
14 *
15 * http://www.usb.org/developers/devclass_docs/audio10.pdf
16 */
17
18#ifndef __LINUX_USB_AUDIO_H
19#define __LINUX_USB_AUDIO_H
20
21#include <linux/types.h>
22
23/* A.2 Audio Interface Subclass Codes */
24#define USB_SUBCLASS_AUDIOCONTROL 0x01
25#define USB_SUBCLASS_AUDIOSTREAMING 0x02
26#define USB_SUBCLASS_MIDISTREAMING 0x03
27
28/* 4.3.2 Class-Specific AC Interface Descriptor */
29struct usb_ac_header_descriptor {
30 __u8 bLength; // 8+n
31 __u8 bDescriptorType; // USB_DT_CS_INTERFACE
32 __u8 bDescriptorSubtype; // USB_MS_HEADER
33 __le16 bcdADC; // 0x0100
34 __le16 wTotalLength; // includes Unit and Terminal desc.
35 __u8 bInCollection; // n
36 __u8 baInterfaceNr[]; // [n]
37} __attribute__ ((packed));
38
39#define USB_DT_AC_HEADER_SIZE(n) (8+(n))
40
41/* As above, but more useful for defining your own descriptors: */
42#define DECLARE_USB_AC_HEADER_DESCRIPTOR(n) \
43struct usb_ac_header_descriptor_##n { \
44 __u8 bLength; \
45 __u8 bDescriptorType; \
46 __u8 bDescriptorSubtype; \
47 __le16 bcdADC; \
48 __le16 wTotalLength; \
49 __u8 bInCollection; \
50 __u8 baInterfaceNr[n]; \
51} __attribute__ ((packed))
52
53#endif
diff --git a/include/linux/usb/midi.h b/include/linux/usb/midi.h
new file mode 100644
index 000000000000..11a97d5ffd34
--- /dev/null
+++ b/include/linux/usb/midi.h
@@ -0,0 +1,112 @@
1/*
2 * <linux/usb/midi.h> -- USB MIDI definitions.
3 *
4 * Copyright (C) 2006 Thumtronics Pty Ltd.
5 * Developed for Thumtronics by Grey Innovation
6 * Ben Williamson <ben.williamson@greyinnovation.com>
7 *
8 * This software is distributed under the terms of the GNU General Public
9 * License ("GPL") version 2, as published by the Free Software Foundation.
10 *
11 * This file holds USB constants and structures defined
12 * by the USB Device Class Definition for MIDI Devices.
13 * Comments below reference relevant sections of that document:
14 *
15 * http://www.usb.org/developers/devclass_docs/midi10.pdf
16 */
17
18#ifndef __LINUX_USB_MIDI_H
19#define __LINUX_USB_MIDI_H
20
21#include <linux/types.h>
22
23/* A.1 MS Class-Specific Interface Descriptor Subtypes */
24#define USB_MS_HEADER 0x01
25#define USB_MS_MIDI_IN_JACK 0x02
26#define USB_MS_MIDI_OUT_JACK 0x03
27#define USB_MS_ELEMENT 0x04
28
29/* A.2 MS Class-Specific Endpoint Descriptor Subtypes */
30#define USB_MS_GENERAL 0x01
31
32/* A.3 MS MIDI IN and OUT Jack Types */
33#define USB_MS_EMBEDDED 0x01
34#define USB_MS_EXTERNAL 0x02
35
36/* 6.1.2.1 Class-Specific MS Interface Header Descriptor */
37struct usb_ms_header_descriptor {
38 __u8 bLength;
39 __u8 bDescriptorType;
40 __u8 bDescriptorSubtype;
41 __le16 bcdMSC;
42 __le16 wTotalLength;
43} __attribute__ ((packed));
44
45#define USB_DT_MS_HEADER_SIZE 7
46
47/* 6.1.2.2 MIDI IN Jack Descriptor */
48struct usb_midi_in_jack_descriptor {
49 __u8 bLength;
50 __u8 bDescriptorType; // USB_DT_CS_INTERFACE
51 __u8 bDescriptorSubtype; // USB_MS_MIDI_IN_JACK
52 __u8 bJackType; // USB_MS_EMBEDDED/EXTERNAL
53 __u8 bJackID;
54 __u8 iJack;
55} __attribute__ ((packed));
56
57#define USB_DT_MIDI_IN_SIZE 6
58
59struct usb_midi_source_pin {
60 __u8 baSourceID;
61 __u8 baSourcePin;
62} __attribute__ ((packed));
63
64/* 6.1.2.3 MIDI OUT Jack Descriptor */
65struct usb_midi_out_jack_descriptor {
66 __u8 bLength;
67 __u8 bDescriptorType; // USB_DT_CS_INTERFACE
68 __u8 bDescriptorSubtype; // USB_MS_MIDI_OUT_JACK
69 __u8 bJackType; // USB_MS_EMBEDDED/EXTERNAL
70 __u8 bJackID;
71 __u8 bNrInputPins; // p
72 struct usb_midi_source_pin pins[]; // [p]
73 /*__u8 iJack; -- ommitted due to variable-sized pins[] */
74} __attribute__ ((packed));
75
76#define USB_DT_MIDI_OUT_SIZE(p) (7 + 2 * (p))
77
78/* As above, but more useful for defining your own descriptors: */
79#define DECLARE_USB_MIDI_OUT_JACK_DESCRIPTOR(p) \
80struct usb_midi_out_jack_descriptor_##p { \
81 __u8 bLength; \
82 __u8 bDescriptorType; \
83 __u8 bDescriptorSubtype; \
84 __u8 bJackType; \
85 __u8 bJackID; \
86 __u8 bNrInputPins; \
87 struct usb_midi_source_pin pins[p]; \
88 __u8 iJack; \
89} __attribute__ ((packed))
90
91/* 6.2.2 Class-Specific MS Bulk Data Endpoint Descriptor */
92struct usb_ms_endpoint_descriptor {
93 __u8 bLength; // 4+n
94 __u8 bDescriptorType; // USB_DT_CS_ENDPOINT
95 __u8 bDescriptorSubtype; // USB_MS_GENERAL
96 __u8 bNumEmbMIDIJack; // n
97 __u8 baAssocJackID[]; // [n]
98} __attribute__ ((packed));
99
100#define USB_DT_MS_ENDPOINT_SIZE(n) (4 + (n))
101
102/* As above, but more useful for defining your own descriptors: */
103#define DECLARE_USB_MS_ENDPOINT_DESCRIPTOR(n) \
104struct usb_ms_endpoint_descriptor_##n { \
105 __u8 bLength; \
106 __u8 bDescriptorType; \
107 __u8 bDescriptorSubtype; \
108 __u8 bNumEmbMIDIJack; \
109 __u8 baAssocJackID[n]; \
110} __attribute__ ((packed))
111
112#endif
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
new file mode 100644
index 000000000000..9897f7a818c5
--- /dev/null
+++ b/include/linux/usb/otg.h
@@ -0,0 +1,131 @@
1// include/linux/usb/otg.h
2
3/*
4 * These APIs may be used between USB controllers. USB device drivers
5 * (for either host or peripheral roles) don't use these calls; they
6 * continue to use just usb_device and usb_gadget.
7 */
8
9
10/* OTG defines lots of enumeration states before device reset */
11enum usb_otg_state {
12 OTG_STATE_UNDEFINED = 0,
13
14 /* single-role peripheral, and dual-role default-b */
15 OTG_STATE_B_IDLE,
16 OTG_STATE_B_SRP_INIT,
17 OTG_STATE_B_PERIPHERAL,
18
19 /* extra dual-role default-b states */
20 OTG_STATE_B_WAIT_ACON,
21 OTG_STATE_B_HOST,
22
23 /* dual-role default-a */
24 OTG_STATE_A_IDLE,
25 OTG_STATE_A_WAIT_VRISE,
26 OTG_STATE_A_WAIT_BCON,
27 OTG_STATE_A_HOST,
28 OTG_STATE_A_SUSPEND,
29 OTG_STATE_A_PERIPHERAL,
30 OTG_STATE_A_WAIT_VFALL,
31 OTG_STATE_A_VBUS_ERR,
32};
33
34/*
35 * the otg driver needs to interact with both device side and host side
36 * usb controllers. it decides which controller is active at a given
37 * moment, using the transceiver, ID signal, HNP and sometimes static
38 * configuration information (including "board isn't wired for otg").
39 */
40struct otg_transceiver {
41 struct device *dev;
42 const char *label;
43
44 u8 default_a;
45 enum usb_otg_state state;
46
47 struct usb_bus *host;
48 struct usb_gadget *gadget;
49
50 /* to pass extra port status to the root hub */
51 u16 port_status;
52 u16 port_change;
53
54 /* bind/unbind the host controller */
55 int (*set_host)(struct otg_transceiver *otg,
56 struct usb_bus *host);
57
58 /* bind/unbind the peripheral controller */
59 int (*set_peripheral)(struct otg_transceiver *otg,
60 struct usb_gadget *gadget);
61
62 /* effective for B devices, ignored for A-peripheral */
63 int (*set_power)(struct otg_transceiver *otg,
64 unsigned mA);
65
66 /* for non-OTG B devices: set transceiver into suspend mode */
67 int (*set_suspend)(struct otg_transceiver *otg,
68 int suspend);
69
70 /* for B devices only: start session with A-Host */
71 int (*start_srp)(struct otg_transceiver *otg);
72
73 /* start or continue HNP role switch */
74 int (*start_hnp)(struct otg_transceiver *otg);
75
76};
77
78
79/* for board-specific init logic */
80extern int otg_set_transceiver(struct otg_transceiver *);
81
82
83/* for usb host and peripheral controller drivers */
84extern struct otg_transceiver *otg_get_transceiver(void);
85
86static inline int
87otg_start_hnp(struct otg_transceiver *otg)
88{
89 return otg->start_hnp(otg);
90}
91
92
93/* for HCDs */
94static inline int
95otg_set_host(struct otg_transceiver *otg, struct usb_bus *host)
96{
97 return otg->set_host(otg, host);
98}
99
100
101/* for usb peripheral controller drivers */
102static inline int
103otg_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *periph)
104{
105 return otg->set_peripheral(otg, periph);
106}
107
108static inline int
109otg_set_power(struct otg_transceiver *otg, unsigned mA)
110{
111 return otg->set_power(otg, mA);
112}
113
114static inline int
115otg_set_suspend(struct otg_transceiver *otg, int suspend)
116{
117 if (otg->set_suspend != NULL)
118 return otg->set_suspend(otg, suspend);
119 else
120 return 0;
121}
122
123static inline int
124otg_start_srp(struct otg_transceiver *otg)
125{
126 return otg->start_srp(otg);
127}
128
129
130/* for OTG controller drivers (and maybe other stuff) */
131extern int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num);
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
new file mode 100644
index 000000000000..91c983eef899
--- /dev/null
+++ b/include/linux/usb/serial.h
@@ -0,0 +1,300 @@
1/*
2 * USB Serial Converter stuff
3 *
4 * Copyright (C) 1999 - 2005
5 * Greg Kroah-Hartman (greg@kroah.com)
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; version 2 of the License.
10 *
11 */
12
13
14#ifndef __LINUX_USB_SERIAL_H
15#define __LINUX_USB_SERIAL_H
16
17#include <linux/kref.h>
18#include <linux/mutex.h>
19
20#define SERIAL_TTY_MAJOR 188 /* Nice legal number now */
21#define SERIAL_TTY_MINORS 255 /* loads of devices :) */
22
23#define MAX_NUM_PORTS 8 /* The maximum number of ports one device can grab at once */
24
25/* parity check flag */
26#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
27
28/**
29 * usb_serial_port: structure for the specific ports of a device.
30 * @serial: pointer back to the struct usb_serial owner of this port.
31 * @tty: pointer to the corresponding tty for this port.
32 * @lock: spinlock to grab when updating portions of this structure.
33 * @mutex: mutex used to synchronize serial_open() and serial_close()
34 * access for this port.
35 * @number: the number of the port (the minor number).
36 * @interrupt_in_buffer: pointer to the interrupt in buffer for this port.
37 * @interrupt_in_urb: pointer to the interrupt in struct urb for this port.
38 * @interrupt_in_endpointAddress: endpoint address for the interrupt in pipe
39 * for this port.
40 * @interrupt_out_buffer: pointer to the interrupt out buffer for this port.
41 * @interrupt_out_size: the size of the interrupt_out_buffer, in bytes.
42 * @interrupt_out_urb: pointer to the interrupt out struct urb for this port.
43 * @interrupt_out_endpointAddress: endpoint address for the interrupt out pipe
44 * for this port.
45 * @bulk_in_buffer: pointer to the bulk in buffer for this port.
46 * @read_urb: pointer to the bulk in struct urb for this port.
47 * @bulk_in_endpointAddress: endpoint address for the bulk in pipe for this
48 * port.
49 * @bulk_out_buffer: pointer to the bulk out buffer for this port.
50 * @bulk_out_size: the size of the bulk_out_buffer, in bytes.
51 * @write_urb: pointer to the bulk out struct urb for this port.
52 * @bulk_out_endpointAddress: endpoint address for the bulk out pipe for this
53 * port.
54 * @write_wait: a wait_queue_head_t used by the port.
55 * @work: work queue entry for the line discipline waking up.
56 * @open_count: number of times this port has been opened.
57 *
58 * This structure is used by the usb-serial core and drivers for the specific
59 * ports of a device.
60 */
61struct usb_serial_port {
62 struct usb_serial * serial;
63 struct tty_struct * tty;
64 spinlock_t lock;
65 struct mutex mutex;
66 unsigned char number;
67
68 unsigned char * interrupt_in_buffer;
69 struct urb * interrupt_in_urb;
70 __u8 interrupt_in_endpointAddress;
71
72 unsigned char * interrupt_out_buffer;
73 int interrupt_out_size;
74 struct urb * interrupt_out_urb;
75 __u8 interrupt_out_endpointAddress;
76
77 unsigned char * bulk_in_buffer;
78 int bulk_in_size;
79 struct urb * read_urb;
80 __u8 bulk_in_endpointAddress;
81
82 unsigned char * bulk_out_buffer;
83 int bulk_out_size;
84 struct urb * write_urb;
85 int write_urb_busy;
86 __u8 bulk_out_endpointAddress;
87
88 wait_queue_head_t write_wait;
89 struct work_struct work;
90 int open_count;
91 struct device dev;
92};
93#define to_usb_serial_port(d) container_of(d, struct usb_serial_port, dev)
94
95/* get and set the port private data pointer helper functions */
96static inline void *usb_get_serial_port_data (struct usb_serial_port *port)
97{
98 return dev_get_drvdata(&port->dev);
99}
100
101static inline void usb_set_serial_port_data (struct usb_serial_port *port, void *data)
102{
103 dev_set_drvdata(&port->dev, data);
104}
105
106/**
107 * usb_serial - structure used by the usb-serial core for a device
108 * @dev: pointer to the struct usb_device for this device
109 * @type: pointer to the struct usb_serial_driver for this device
110 * @interface: pointer to the struct usb_interface for this device
111 * @minor: the starting minor number for this device
112 * @num_ports: the number of ports this device has
113 * @num_interrupt_in: number of interrupt in endpoints we have
114 * @num_interrupt_out: number of interrupt out endpoints we have
115 * @num_bulk_in: number of bulk in endpoints we have
116 * @num_bulk_out: number of bulk out endpoints we have
117 * @port: array of struct usb_serial_port structures for the different ports.
118 * @private: place to put any driver specific information that is needed. The
119 * usb-serial driver is required to manage this data, the usb-serial core
120 * will not touch this. Use usb_get_serial_data() and
121 * usb_set_serial_data() to access this.
122 */
123struct usb_serial {
124 struct usb_device * dev;
125 struct usb_serial_driver * type;
126 struct usb_interface * interface;
127 unsigned char minor;
128 unsigned char num_ports;
129 unsigned char num_port_pointers;
130 char num_interrupt_in;
131 char num_interrupt_out;
132 char num_bulk_in;
133 char num_bulk_out;
134 struct usb_serial_port * port[MAX_NUM_PORTS];
135 struct kref kref;
136 void * private;
137};
138#define to_usb_serial(d) container_of(d, struct usb_serial, kref)
139
140#define NUM_DONT_CARE (-1)
141
142/* get and set the serial private data pointer helper functions */
143static inline void *usb_get_serial_data (struct usb_serial *serial)
144{
145 return serial->private;
146}
147
148static inline void usb_set_serial_data (struct usb_serial *serial, void *data)
149{
150 serial->private = data;
151}
152
153/**
154 * usb_serial_driver - describes a usb serial driver
155 * @description: pointer to a string that describes this driver. This string used
156 * in the syslog messages when a device is inserted or removed.
157 * @id_table: pointer to a list of usb_device_id structures that define all
158 * of the devices this structure can support.
159 * @num_interrupt_in: the number of interrupt in endpoints this device will
160 * have.
161 * @num_interrupt_out: the number of interrupt out endpoints this device will
162 * have.
163 * @num_bulk_in: the number of bulk in endpoints this device will have.
164 * @num_bulk_out: the number of bulk out endpoints this device will have.
165 * @num_ports: the number of different ports this device will have.
166 * @calc_num_ports: pointer to a function to determine how many ports this
167 * device has dynamically. It will be called after the probe()
168 * callback is called, but before attach()
169 * @probe: pointer to the driver's probe function.
170 * This will be called when the device is inserted into the system,
171 * but before the device has been fully initialized by the usb_serial
172 * subsystem. Use this function to download any firmware to the device,
173 * or any other early initialization that might be needed.
174 * Return 0 to continue on with the initialization sequence. Anything
175 * else will abort it.
176 * @attach: pointer to the driver's attach function.
177 * This will be called when the struct usb_serial structure is fully set
178 * set up. Do any local initialization of the device, or any private
179 * memory structure allocation at this point in time.
180 * @shutdown: pointer to the driver's shutdown function. This will be
181 * called when the device is removed from the system.
182 *
183 * This structure is defines a USB Serial driver. It provides all of
184 * the information that the USB serial core code needs. If the function
185 * pointers are defined, then the USB serial core code will call them when
186 * the corresponding tty port functions are called. If they are not
187 * called, the generic serial function will be used instead.
188 *
189 * The driver.owner field should be set to the module owner of this driver.
190 * The driver.name field should be set to the name of this driver (remember
191 * it will show up in sysfs, so it needs to be short and to the point.
192 * Useing the module name is a good idea.)
193 */
194struct usb_serial_driver {
195 const char *description;
196 const struct usb_device_id *id_table;
197 char num_interrupt_in;
198 char num_interrupt_out;
199 char num_bulk_in;
200 char num_bulk_out;
201 char num_ports;
202
203 struct list_head driver_list;
204 struct device_driver driver;
205
206 int (*probe) (struct usb_serial *serial, const struct usb_device_id *id);
207 int (*attach) (struct usb_serial *serial);
208 int (*calc_num_ports) (struct usb_serial *serial);
209
210 void (*shutdown) (struct usb_serial *serial);
211
212 int (*port_probe) (struct usb_serial_port *port);
213 int (*port_remove) (struct usb_serial_port *port);
214
215 /* serial function calls */
216 int (*open) (struct usb_serial_port *port, struct file * filp);
217 void (*close) (struct usb_serial_port *port, struct file * filp);
218 int (*write) (struct usb_serial_port *port, const unsigned char *buf, int count);
219 int (*write_room) (struct usb_serial_port *port);
220 int (*ioctl) (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
221 void (*set_termios) (struct usb_serial_port *port, struct termios * old);
222 void (*break_ctl) (struct usb_serial_port *port, int break_state);
223 int (*chars_in_buffer) (struct usb_serial_port *port);
224 void (*throttle) (struct usb_serial_port *port);
225 void (*unthrottle) (struct usb_serial_port *port);
226 int (*tiocmget) (struct usb_serial_port *port, struct file *file);
227 int (*tiocmset) (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear);
228
229 void (*read_int_callback)(struct urb *urb, struct pt_regs *regs);
230 void (*write_int_callback)(struct urb *urb, struct pt_regs *regs);
231 void (*read_bulk_callback)(struct urb *urb, struct pt_regs *regs);
232 void (*write_bulk_callback)(struct urb *urb, struct pt_regs *regs);
233};
234#define to_usb_serial_driver(d) container_of(d, struct usb_serial_driver, driver)
235
236extern int usb_serial_register(struct usb_serial_driver *driver);
237extern void usb_serial_deregister(struct usb_serial_driver *driver);
238extern void usb_serial_port_softint(struct usb_serial_port *port);
239
240extern int usb_serial_probe(struct usb_interface *iface, const struct usb_device_id *id);
241extern void usb_serial_disconnect(struct usb_interface *iface);
242
243extern int ezusb_writememory (struct usb_serial *serial, int address, unsigned char *data, int length, __u8 bRequest);
244extern int ezusb_set_reset (struct usb_serial *serial, unsigned char reset_bit);
245
246/* USB Serial console functions */
247#ifdef CONFIG_USB_SERIAL_CONSOLE
248extern void usb_serial_console_init (int debug, int minor);
249extern void usb_serial_console_exit (void);
250extern void usb_serial_console_disconnect(struct usb_serial *serial);
251#else
252static inline void usb_serial_console_init (int debug, int minor) { }
253static inline void usb_serial_console_exit (void) { }
254static inline void usb_serial_console_disconnect(struct usb_serial *serial) {}
255#endif
256
257/* Functions needed by other parts of the usbserial core */
258extern struct usb_serial *usb_serial_get_by_index (unsigned int minor);
259extern void usb_serial_put(struct usb_serial *serial);
260extern int usb_serial_generic_open (struct usb_serial_port *port, struct file *filp);
261extern int usb_serial_generic_write (struct usb_serial_port *port, const unsigned char *buf, int count);
262extern void usb_serial_generic_close (struct usb_serial_port *port, struct file *filp);
263extern int usb_serial_generic_write_room (struct usb_serial_port *port);
264extern int usb_serial_generic_chars_in_buffer (struct usb_serial_port *port);
265extern void usb_serial_generic_read_bulk_callback (struct urb *urb, struct pt_regs *regs);
266extern void usb_serial_generic_write_bulk_callback (struct urb *urb, struct pt_regs *regs);
267extern void usb_serial_generic_shutdown (struct usb_serial *serial);
268extern int usb_serial_generic_register (int debug);
269extern void usb_serial_generic_deregister (void);
270
271extern int usb_serial_bus_register (struct usb_serial_driver *device);
272extern void usb_serial_bus_deregister (struct usb_serial_driver *device);
273
274extern struct usb_serial_driver usb_serial_generic_device;
275extern struct bus_type usb_serial_bus_type;
276extern struct tty_driver *usb_serial_tty_driver;
277
278static inline void usb_serial_debug_data(int debug,
279 struct device *dev,
280 const char *function, int size,
281 const unsigned char *data)
282{
283 int i;
284
285 if (debug) {
286 dev_printk(KERN_DEBUG, dev, "%s - length = %d, data = ", function, size);
287 for (i = 0; i < size; ++i)
288 printk ("%.2x ", data[i]);
289 printk ("\n");
290 }
291}
292
293/* Use our own dbg macro */
294#undef dbg
295#define dbg(format, arg...) do { if (debug) printk(KERN_DEBUG "%s: " format "\n" , __FILE__ , ## arg); } while (0)
296
297
298
299#endif /* ifdef __LINUX_USB_SERIAL_H */
300
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