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TOMOYO Linux Cross Reference
Linux/include/uapi/linux/gpio.h

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  1 /* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
  2 /*
  3  * <linux/gpio.h> - userspace ABI for the GPIO character devices
  4  *
  5  * Copyright (C) 2016 Linus Walleij
  6  *
  7  * This program is free software; you can redistribute it and/or modify it
  8  * under the terms of the GNU General Public License version 2 as published by
  9  * the Free Software Foundation.
 10  */
 11 #ifndef _UAPI_GPIO_H_
 12 #define _UAPI_GPIO_H_
 13 
 14 #include <linux/const.h>
 15 #include <linux/ioctl.h>
 16 #include <linux/types.h>
 17 
 18 /*
 19  * The maximum size of name and label arrays.
 20  *
 21  * Must be a multiple of 8 to ensure 32/64-bit alignment of structs.
 22  */
 23 #define GPIO_MAX_NAME_SIZE 32
 24 
 25 /**
 26  * struct gpiochip_info - Information about a certain GPIO chip
 27  * @name: the Linux kernel name of this GPIO chip
 28  * @label: a functional name for this GPIO chip, such as a product
 29  * number, may be empty (i.e. label[0] == '\0')
 30  * @lines: number of GPIO lines on this chip
 31  */
 32 struct gpiochip_info {
 33         char name[GPIO_MAX_NAME_SIZE];
 34         char label[GPIO_MAX_NAME_SIZE];
 35         __u32 lines;
 36 };
 37 
 38 /*
 39  * Maximum number of requested lines.
 40  *
 41  * Must be no greater than 64, as bitmaps are restricted here to 64-bits
 42  * for simplicity, and a multiple of 2 to ensure 32/64-bit alignment of
 43  * structs.
 44  */
 45 #define GPIO_V2_LINES_MAX 64
 46 
 47 /*
 48  * The maximum number of configuration attributes associated with a line
 49  * request.
 50  */
 51 #define GPIO_V2_LINE_NUM_ATTRS_MAX 10
 52 
 53 /**
 54  * enum gpio_v2_line_flag - &struct gpio_v2_line_attribute.flags values
 55  * @GPIO_V2_LINE_FLAG_USED: line is not available for request
 56  * @GPIO_V2_LINE_FLAG_ACTIVE_LOW: line active state is physical low
 57  * @GPIO_V2_LINE_FLAG_INPUT: line is an input
 58  * @GPIO_V2_LINE_FLAG_OUTPUT: line is an output
 59  * @GPIO_V2_LINE_FLAG_EDGE_RISING: line detects rising (inactive to active)
 60  * edges
 61  * @GPIO_V2_LINE_FLAG_EDGE_FALLING: line detects falling (active to
 62  * inactive) edges
 63  * @GPIO_V2_LINE_FLAG_OPEN_DRAIN: line is an open drain output
 64  * @GPIO_V2_LINE_FLAG_OPEN_SOURCE: line is an open source output
 65  * @GPIO_V2_LINE_FLAG_BIAS_PULL_UP: line has pull-up bias enabled
 66  * @GPIO_V2_LINE_FLAG_BIAS_PULL_DOWN: line has pull-down bias enabled
 67  * @GPIO_V2_LINE_FLAG_BIAS_DISABLED: line has bias disabled
 68  * @GPIO_V2_LINE_FLAG_EVENT_CLOCK_REALTIME: line events contain REALTIME timestamps
 69  * @GPIO_V2_LINE_FLAG_EVENT_CLOCK_HTE: line events contain timestamps from
 70  * hardware timestamp engine
 71  */
 72 enum gpio_v2_line_flag {
 73         GPIO_V2_LINE_FLAG_USED                  = _BITULL(0),
 74         GPIO_V2_LINE_FLAG_ACTIVE_LOW            = _BITULL(1),
 75         GPIO_V2_LINE_FLAG_INPUT                 = _BITULL(2),
 76         GPIO_V2_LINE_FLAG_OUTPUT                = _BITULL(3),
 77         GPIO_V2_LINE_FLAG_EDGE_RISING           = _BITULL(4),
 78         GPIO_V2_LINE_FLAG_EDGE_FALLING          = _BITULL(5),
 79         GPIO_V2_LINE_FLAG_OPEN_DRAIN            = _BITULL(6),
 80         GPIO_V2_LINE_FLAG_OPEN_SOURCE           = _BITULL(7),
 81         GPIO_V2_LINE_FLAG_BIAS_PULL_UP          = _BITULL(8),
 82         GPIO_V2_LINE_FLAG_BIAS_PULL_DOWN        = _BITULL(9),
 83         GPIO_V2_LINE_FLAG_BIAS_DISABLED         = _BITULL(10),
 84         GPIO_V2_LINE_FLAG_EVENT_CLOCK_REALTIME  = _BITULL(11),
 85         GPIO_V2_LINE_FLAG_EVENT_CLOCK_HTE       = _BITULL(12),
 86 };
 87 
 88 /**
 89  * struct gpio_v2_line_values - Values of GPIO lines
 90  * @bits: a bitmap containing the value of the lines, set to 1 for active
 91  * and 0 for inactive.
 92  * @mask: a bitmap identifying the lines to get or set, with each bit
 93  * number corresponding to the index into &struct
 94  * gpio_v2_line_request.offsets.
 95  */
 96 struct gpio_v2_line_values {
 97         __aligned_u64 bits;
 98         __aligned_u64 mask;
 99 };
100 
101 /**
102  * enum gpio_v2_line_attr_id - &struct gpio_v2_line_attribute.id values
103  * identifying which field of the attribute union is in use.
104  * @GPIO_V2_LINE_ATTR_ID_FLAGS: flags field is in use
105  * @GPIO_V2_LINE_ATTR_ID_OUTPUT_VALUES: values field is in use
106  * @GPIO_V2_LINE_ATTR_ID_DEBOUNCE: debounce_period_us field is in use
107  */
108 enum gpio_v2_line_attr_id {
109         GPIO_V2_LINE_ATTR_ID_FLAGS              = 1,
110         GPIO_V2_LINE_ATTR_ID_OUTPUT_VALUES      = 2,
111         GPIO_V2_LINE_ATTR_ID_DEBOUNCE           = 3,
112 };
113 
114 /**
115  * struct gpio_v2_line_attribute - a configurable attribute of a line
116  * @id: attribute identifier with value from &enum gpio_v2_line_attr_id
117  * @padding: reserved for future use and must be zero filled
118  * @flags: if id is %GPIO_V2_LINE_ATTR_ID_FLAGS, the flags for the GPIO
119  * line, with values from &enum gpio_v2_line_flag, such as
120  * %GPIO_V2_LINE_FLAG_ACTIVE_LOW, %GPIO_V2_LINE_FLAG_OUTPUT etc, added
121  * together.  This overrides the default flags contained in the &struct
122  * gpio_v2_line_config for the associated line.
123  * @values: if id is %GPIO_V2_LINE_ATTR_ID_OUTPUT_VALUES, a bitmap
124  * containing the values to which the lines will be set, with each bit
125  * number corresponding to the index into &struct
126  * gpio_v2_line_request.offsets.
127  * @debounce_period_us: if id is %GPIO_V2_LINE_ATTR_ID_DEBOUNCE, the
128  * desired debounce period, in microseconds
129  */
130 struct gpio_v2_line_attribute {
131         __u32 id;
132         __u32 padding;
133         union {
134                 __aligned_u64 flags;
135                 __aligned_u64 values;
136                 __u32 debounce_period_us;
137         };
138 };
139 
140 /**
141  * struct gpio_v2_line_config_attribute - a configuration attribute
142  * associated with one or more of the requested lines.
143  * @attr: the configurable attribute
144  * @mask: a bitmap identifying the lines to which the attribute applies,
145  * with each bit number corresponding to the index into &struct
146  * gpio_v2_line_request.offsets.
147  */
148 struct gpio_v2_line_config_attribute {
149         struct gpio_v2_line_attribute attr;
150         __aligned_u64 mask;
151 };
152 
153 /**
154  * struct gpio_v2_line_config - Configuration for GPIO lines
155  * @flags: flags for the GPIO lines, with values from &enum
156  * gpio_v2_line_flag, such as %GPIO_V2_LINE_FLAG_ACTIVE_LOW,
157  * %GPIO_V2_LINE_FLAG_OUTPUT etc, added together.  This is the default for
158  * all requested lines but may be overridden for particular lines using
159  * @attrs.
160  * @num_attrs: the number of attributes in @attrs
161  * @padding: reserved for future use and must be zero filled
162  * @attrs: the configuration attributes associated with the requested
163  * lines.  Any attribute should only be associated with a particular line
164  * once.  If an attribute is associated with a line multiple times then the
165  * first occurrence (i.e. lowest index) has precedence.
166  */
167 struct gpio_v2_line_config {
168         __aligned_u64 flags;
169         __u32 num_attrs;
170         /* Pad to fill implicit padding and reserve space for future use. */
171         __u32 padding[5];
172         struct gpio_v2_line_config_attribute attrs[GPIO_V2_LINE_NUM_ATTRS_MAX];
173 };
174 
175 /**
176  * struct gpio_v2_line_request - Information about a request for GPIO lines
177  * @offsets: an array of desired lines, specified by offset index for the
178  * associated GPIO chip
179  * @consumer: a desired consumer label for the selected GPIO lines such as
180  * "my-bitbanged-relay"
181  * @config: requested configuration for the lines.
182  * @num_lines: number of lines requested in this request, i.e. the number
183  * of valid fields in the %GPIO_V2_LINES_MAX sized arrays, set to 1 to
184  * request a single line
185  * @event_buffer_size: a suggested minimum number of line events that the
186  * kernel should buffer.  This is only relevant if edge detection is
187  * enabled in the configuration. Note that this is only a suggested value
188  * and the kernel may allocate a larger buffer or cap the size of the
189  * buffer. If this field is zero then the buffer size defaults to a minimum
190  * of @num_lines * 16.
191  * @padding: reserved for future use and must be zero filled
192  * @fd: if successful this field will contain a valid anonymous file handle
193  * after a %GPIO_GET_LINE_IOCTL operation, zero or negative value means
194  * error
195  */
196 struct gpio_v2_line_request {
197         __u32 offsets[GPIO_V2_LINES_MAX];
198         char consumer[GPIO_MAX_NAME_SIZE];
199         struct gpio_v2_line_config config;
200         __u32 num_lines;
201         __u32 event_buffer_size;
202         /* Pad to fill implicit padding and reserve space for future use. */
203         __u32 padding[5];
204         __s32 fd;
205 };
206 
207 /**
208  * struct gpio_v2_line_info - Information about a certain GPIO line
209  * @name: the name of this GPIO line, such as the output pin of the line on
210  * the chip, a rail or a pin header name on a board, as specified by the
211  * GPIO chip, may be empty (i.e. name[0] == '\0')
212  * @consumer: a functional name for the consumer of this GPIO line as set
213  * by whatever is using it, will be empty if there is no current user but
214  * may also be empty if the consumer doesn't set this up
215  * @offset: the local offset on this GPIO chip, fill this in when
216  * requesting the line information from the kernel
217  * @num_attrs: the number of attributes in @attrs
218  * @flags: flags for this GPIO line, with values from &enum
219  * gpio_v2_line_flag, such as %GPIO_V2_LINE_FLAG_ACTIVE_LOW,
220  * %GPIO_V2_LINE_FLAG_OUTPUT etc, added together.
221  * @attrs: the configuration attributes associated with the line
222  * @padding: reserved for future use
223  */
224 struct gpio_v2_line_info {
225         char name[GPIO_MAX_NAME_SIZE];
226         char consumer[GPIO_MAX_NAME_SIZE];
227         __u32 offset;
228         __u32 num_attrs;
229         __aligned_u64 flags;
230         struct gpio_v2_line_attribute attrs[GPIO_V2_LINE_NUM_ATTRS_MAX];
231         /* Space reserved for future use. */
232         __u32 padding[4];
233 };
234 
235 /**
236  * enum gpio_v2_line_changed_type - &struct gpio_v2_line_changed.event_type
237  * values
238  * @GPIO_V2_LINE_CHANGED_REQUESTED: line has been requested
239  * @GPIO_V2_LINE_CHANGED_RELEASED: line has been released
240  * @GPIO_V2_LINE_CHANGED_CONFIG: line has been reconfigured
241  */
242 enum gpio_v2_line_changed_type {
243         GPIO_V2_LINE_CHANGED_REQUESTED  = 1,
244         GPIO_V2_LINE_CHANGED_RELEASED   = 2,
245         GPIO_V2_LINE_CHANGED_CONFIG     = 3,
246 };
247 
248 /**
249  * struct gpio_v2_line_info_changed - Information about a change in status
250  * of a GPIO line
251  * @info: updated line information
252  * @timestamp_ns: estimate of time of status change occurrence, in nanoseconds
253  * @event_type: the type of change with a value from &enum
254  * gpio_v2_line_changed_type
255  * @padding: reserved for future use
256  */
257 struct gpio_v2_line_info_changed {
258         struct gpio_v2_line_info info;
259         __aligned_u64 timestamp_ns;
260         __u32 event_type;
261         /* Pad struct to 64-bit boundary and reserve space for future use. */
262         __u32 padding[5];
263 };
264 
265 /**
266  * enum gpio_v2_line_event_id - &struct gpio_v2_line_event.id values
267  * @GPIO_V2_LINE_EVENT_RISING_EDGE: event triggered by a rising edge
268  * @GPIO_V2_LINE_EVENT_FALLING_EDGE: event triggered by a falling edge
269  */
270 enum gpio_v2_line_event_id {
271         GPIO_V2_LINE_EVENT_RISING_EDGE  = 1,
272         GPIO_V2_LINE_EVENT_FALLING_EDGE = 2,
273 };
274 
275 /**
276  * struct gpio_v2_line_event - The actual event being pushed to userspace
277  * @timestamp_ns: best estimate of time of event occurrence, in nanoseconds.
278  * @id: event identifier with value from &enum gpio_v2_line_event_id
279  * @offset: the offset of the line that triggered the event
280  * @seqno: the sequence number for this event in the sequence of events for
281  * all the lines in this line request
282  * @line_seqno: the sequence number for this event in the sequence of
283  * events on this particular line
284  * @padding: reserved for future use
285  *
286  * By default the @timestamp_ns is read from %CLOCK_MONOTONIC and is
287  * intended to allow the accurate measurement of the time between events.
288  * It does not provide the wall-clock time.
289  *
290  * If the %GPIO_V2_LINE_FLAG_EVENT_CLOCK_REALTIME flag is set then the
291  * @timestamp_ns is read from %CLOCK_REALTIME.
292  */
293 struct gpio_v2_line_event {
294         __aligned_u64 timestamp_ns;
295         __u32 id;
296         __u32 offset;
297         __u32 seqno;
298         __u32 line_seqno;
299         /* Space reserved for future use. */
300         __u32 padding[6];
301 };
302 
303 /*
304  * ABI v1
305  *
306  * This version of the ABI is deprecated.
307  * Use the latest version of the ABI, defined above, instead.
308  */
309 
310 /* Informational flags */
311 #define GPIOLINE_FLAG_KERNEL            (1UL << 0) /* Line used by the kernel */
312 #define GPIOLINE_FLAG_IS_OUT            (1UL << 1)
313 #define GPIOLINE_FLAG_ACTIVE_LOW        (1UL << 2)
314 #define GPIOLINE_FLAG_OPEN_DRAIN        (1UL << 3)
315 #define GPIOLINE_FLAG_OPEN_SOURCE       (1UL << 4)
316 #define GPIOLINE_FLAG_BIAS_PULL_UP      (1UL << 5)
317 #define GPIOLINE_FLAG_BIAS_PULL_DOWN    (1UL << 6)
318 #define GPIOLINE_FLAG_BIAS_DISABLE      (1UL << 7)
319 
320 /**
321  * struct gpioline_info - Information about a certain GPIO line
322  * @line_offset: the local offset on this GPIO device, fill this in when
323  * requesting the line information from the kernel
324  * @flags: various flags for this line
325  * @name: the name of this GPIO line, such as the output pin of the line on the
326  * chip, a rail or a pin header name on a board, as specified by the gpio
327  * chip, may be empty (i.e. name[0] == '\0')
328  * @consumer: a functional name for the consumer of this GPIO line as set by
329  * whatever is using it, will be empty if there is no current user but may
330  * also be empty if the consumer doesn't set this up
331  *
332  * Note: This struct is part of ABI v1 and is deprecated.
333  * Use &struct gpio_v2_line_info instead.
334  */
335 struct gpioline_info {
336         __u32 line_offset;
337         __u32 flags;
338         char name[GPIO_MAX_NAME_SIZE];
339         char consumer[GPIO_MAX_NAME_SIZE];
340 };
341 
342 /* Maximum number of requested handles */
343 #define GPIOHANDLES_MAX 64
344 
345 /* Possible line status change events */
346 enum {
347         GPIOLINE_CHANGED_REQUESTED = 1,
348         GPIOLINE_CHANGED_RELEASED,
349         GPIOLINE_CHANGED_CONFIG,
350 };
351 
352 /**
353  * struct gpioline_info_changed - Information about a change in status
354  * of a GPIO line
355  * @info: updated line information
356  * @timestamp: estimate of time of status change occurrence, in nanoseconds
357  * @event_type: one of %GPIOLINE_CHANGED_REQUESTED,
358  * %GPIOLINE_CHANGED_RELEASED and %GPIOLINE_CHANGED_CONFIG
359  * @padding: reserved for future use
360  *
361  * The &struct gpioline_info embedded here has 32-bit alignment on its own,
362  * but it works fine with 64-bit alignment too. With its 72 byte size, we can
363  * guarantee there are no implicit holes between it and subsequent members.
364  * The 20-byte padding at the end makes sure we don't add any implicit padding
365  * at the end of the structure on 64-bit architectures.
366  *
367  * Note: This struct is part of ABI v1 and is deprecated.
368  * Use &struct gpio_v2_line_info_changed instead.
369  */
370 struct gpioline_info_changed {
371         struct gpioline_info info;
372         __u64 timestamp;
373         __u32 event_type;
374         __u32 padding[5]; /* for future use */
375 };
376 
377 /* Linerequest flags */
378 #define GPIOHANDLE_REQUEST_INPUT        (1UL << 0)
379 #define GPIOHANDLE_REQUEST_OUTPUT       (1UL << 1)
380 #define GPIOHANDLE_REQUEST_ACTIVE_LOW   (1UL << 2)
381 #define GPIOHANDLE_REQUEST_OPEN_DRAIN   (1UL << 3)
382 #define GPIOHANDLE_REQUEST_OPEN_SOURCE  (1UL << 4)
383 #define GPIOHANDLE_REQUEST_BIAS_PULL_UP (1UL << 5)
384 #define GPIOHANDLE_REQUEST_BIAS_PULL_DOWN       (1UL << 6)
385 #define GPIOHANDLE_REQUEST_BIAS_DISABLE (1UL << 7)
386 
387 /**
388  * struct gpiohandle_request - Information about a GPIO handle request
389  * @lineoffsets: an array of desired lines, specified by offset index for the
390  * associated GPIO device
391  * @flags: desired flags for the desired GPIO lines, such as
392  * %GPIOHANDLE_REQUEST_OUTPUT, %GPIOHANDLE_REQUEST_ACTIVE_LOW etc, added
393  * together. Note that even if multiple lines are requested, the same flags
394  * must be applicable to all of them, if you want lines with individual
395  * flags set, request them one by one. It is possible to select
396  * a batch of input or output lines, but they must all have the same
397  * characteristics, i.e. all inputs or all outputs, all active low etc
398  * @default_values: if the %GPIOHANDLE_REQUEST_OUTPUT is set for a requested
399  * line, this specifies the default output value, should be 0 (low) or
400  * 1 (high), anything else than 0 or 1 will be interpreted as 1 (high)
401  * @consumer_label: a desired consumer label for the selected GPIO line(s)
402  * such as "my-bitbanged-relay"
403  * @lines: number of lines requested in this request, i.e. the number of
404  * valid fields in the above arrays, set to 1 to request a single line
405  * @fd: if successful this field will contain a valid anonymous file handle
406  * after a %GPIO_GET_LINEHANDLE_IOCTL operation, zero or negative value
407  * means error
408  *
409  * Note: This struct is part of ABI v1 and is deprecated.
410  * Use &struct gpio_v2_line_request instead.
411  */
412 struct gpiohandle_request {
413         __u32 lineoffsets[GPIOHANDLES_MAX];
414         __u32 flags;
415         __u8 default_values[GPIOHANDLES_MAX];
416         char consumer_label[GPIO_MAX_NAME_SIZE];
417         __u32 lines;
418         int fd;
419 };
420 
421 /**
422  * struct gpiohandle_config - Configuration for a GPIO handle request
423  * @flags: updated flags for the requested GPIO lines, such as
424  * %GPIOHANDLE_REQUEST_OUTPUT, %GPIOHANDLE_REQUEST_ACTIVE_LOW etc, added
425  * together
426  * @default_values: if the %GPIOHANDLE_REQUEST_OUTPUT is set in flags,
427  * this specifies the default output value, should be 0 (low) or
428  * 1 (high), anything else than 0 or 1 will be interpreted as 1 (high)
429  * @padding: reserved for future use and should be zero filled
430  *
431  * Note: This struct is part of ABI v1 and is deprecated.
432  * Use &struct gpio_v2_line_config instead.
433  */
434 struct gpiohandle_config {
435         __u32 flags;
436         __u8 default_values[GPIOHANDLES_MAX];
437         __u32 padding[4]; /* padding for future use */
438 };
439 
440 /**
441  * struct gpiohandle_data - Information of values on a GPIO handle
442  * @values: when getting the state of lines this contains the current
443  * state of a line, when setting the state of lines these should contain
444  * the desired target state
445  *
446  * Note: This struct is part of ABI v1 and is deprecated.
447  * Use &struct gpio_v2_line_values instead.
448  */
449 struct gpiohandle_data {
450         __u8 values[GPIOHANDLES_MAX];
451 };
452 
453 /* Eventrequest flags */
454 #define GPIOEVENT_REQUEST_RISING_EDGE   (1UL << 0)
455 #define GPIOEVENT_REQUEST_FALLING_EDGE  (1UL << 1)
456 #define GPIOEVENT_REQUEST_BOTH_EDGES    ((1UL << 0) | (1UL << 1))
457 
458 /**
459  * struct gpioevent_request - Information about a GPIO event request
460  * @lineoffset: the desired line to subscribe to events from, specified by
461  * offset index for the associated GPIO device
462  * @handleflags: desired handle flags for the desired GPIO line, such as
463  * %GPIOHANDLE_REQUEST_ACTIVE_LOW or %GPIOHANDLE_REQUEST_OPEN_DRAIN
464  * @eventflags: desired flags for the desired GPIO event line, such as
465  * %GPIOEVENT_REQUEST_RISING_EDGE or %GPIOEVENT_REQUEST_FALLING_EDGE
466  * @consumer_label: a desired consumer label for the selected GPIO line(s)
467  * such as "my-listener"
468  * @fd: if successful this field will contain a valid anonymous file handle
469  * after a %GPIO_GET_LINEEVENT_IOCTL operation, zero or negative value
470  * means error
471  *
472  * Note: This struct is part of ABI v1 and is deprecated.
473  * Use &struct gpio_v2_line_request instead.
474  */
475 struct gpioevent_request {
476         __u32 lineoffset;
477         __u32 handleflags;
478         __u32 eventflags;
479         char consumer_label[GPIO_MAX_NAME_SIZE];
480         int fd;
481 };
482 
483 /*
484  * GPIO event types
485  */
486 #define GPIOEVENT_EVENT_RISING_EDGE 0x01
487 #define GPIOEVENT_EVENT_FALLING_EDGE 0x02
488 
489 /**
490  * struct gpioevent_data - The actual event being pushed to userspace
491  * @timestamp: best estimate of time of event occurrence, in nanoseconds
492  * @id: event identifier
493  *
494  * Note: This struct is part of ABI v1 and is deprecated.
495  * Use &struct gpio_v2_line_event instead.
496  */
497 struct gpioevent_data {
498         __u64 timestamp;
499         __u32 id;
500 };
501 
502 /*
503  * v1 and v2 ioctl()s
504  */
505 #define GPIO_GET_CHIPINFO_IOCTL _IOR(0xB4, 0x01, struct gpiochip_info)
506 #define GPIO_GET_LINEINFO_UNWATCH_IOCTL _IOWR(0xB4, 0x0C, __u32)
507 
508 /*
509  * v2 ioctl()s
510  */
511 #define GPIO_V2_GET_LINEINFO_IOCTL _IOWR(0xB4, 0x05, struct gpio_v2_line_info)
512 #define GPIO_V2_GET_LINEINFO_WATCH_IOCTL _IOWR(0xB4, 0x06, struct gpio_v2_line_info)
513 #define GPIO_V2_GET_LINE_IOCTL _IOWR(0xB4, 0x07, struct gpio_v2_line_request)
514 #define GPIO_V2_LINE_SET_CONFIG_IOCTL _IOWR(0xB4, 0x0D, struct gpio_v2_line_config)
515 #define GPIO_V2_LINE_GET_VALUES_IOCTL _IOWR(0xB4, 0x0E, struct gpio_v2_line_values)
516 #define GPIO_V2_LINE_SET_VALUES_IOCTL _IOWR(0xB4, 0x0F, struct gpio_v2_line_values)
517 
518 /*
519  * v1 ioctl()s
520  *
521  * These ioctl()s are deprecated.  Use the v2 equivalent instead.
522  */
523 #define GPIO_GET_LINEINFO_IOCTL _IOWR(0xB4, 0x02, struct gpioline_info)
524 #define GPIO_GET_LINEHANDLE_IOCTL _IOWR(0xB4, 0x03, struct gpiohandle_request)
525 #define GPIO_GET_LINEEVENT_IOCTL _IOWR(0xB4, 0x04, struct gpioevent_request)
526 #define GPIOHANDLE_GET_LINE_VALUES_IOCTL _IOWR(0xB4, 0x08, struct gpiohandle_data)
527 #define GPIOHANDLE_SET_LINE_VALUES_IOCTL _IOWR(0xB4, 0x09, struct gpiohandle_data)
528 #define GPIOHANDLE_SET_CONFIG_IOCTL _IOWR(0xB4, 0x0A, struct gpiohandle_config)
529 #define GPIO_GET_LINEINFO_WATCH_IOCTL _IOWR(0xB4, 0x0B, struct gpioline_info)
530 
531 #endif /* _UAPI_GPIO_H_ */
532 

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