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