1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _UAPI__LINUX_FUNCTIONFS_H__ 2 #ifndef _UAPI__LINUX_FUNCTIONFS_H__
3 #define _UAPI__LINUX_FUNCTIONFS_H__ 3 #define _UAPI__LINUX_FUNCTIONFS_H__
4 4
5 5
6 #include <linux/types.h> 6 #include <linux/types.h>
7 #include <linux/ioctl.h> 7 #include <linux/ioctl.h>
8 8
9 #include <linux/usb/ch9.h> 9 #include <linux/usb/ch9.h>
10 10
11 11
12 enum { 12 enum {
13 FUNCTIONFS_DESCRIPTORS_MAGIC = 1, 13 FUNCTIONFS_DESCRIPTORS_MAGIC = 1,
14 FUNCTIONFS_STRINGS_MAGIC = 2, 14 FUNCTIONFS_STRINGS_MAGIC = 2,
15 FUNCTIONFS_DESCRIPTORS_MAGIC_V2 = 3, 15 FUNCTIONFS_DESCRIPTORS_MAGIC_V2 = 3,
16 }; 16 };
17 17
18 enum functionfs_flags { 18 enum functionfs_flags {
19 FUNCTIONFS_HAS_FS_DESC = 1, 19 FUNCTIONFS_HAS_FS_DESC = 1,
20 FUNCTIONFS_HAS_HS_DESC = 2, 20 FUNCTIONFS_HAS_HS_DESC = 2,
21 FUNCTIONFS_HAS_SS_DESC = 4, 21 FUNCTIONFS_HAS_SS_DESC = 4,
22 FUNCTIONFS_HAS_MS_OS_DESC = 8, 22 FUNCTIONFS_HAS_MS_OS_DESC = 8,
23 FUNCTIONFS_VIRTUAL_ADDR = 16, 23 FUNCTIONFS_VIRTUAL_ADDR = 16,
24 FUNCTIONFS_EVENTFD = 32, 24 FUNCTIONFS_EVENTFD = 32,
25 FUNCTIONFS_ALL_CTRL_RECIP = 64, 25 FUNCTIONFS_ALL_CTRL_RECIP = 64,
26 FUNCTIONFS_CONFIG0_SETUP = 128, 26 FUNCTIONFS_CONFIG0_SETUP = 128,
27 }; 27 };
28 28
29 /* Descriptor of an non-audio endpoint */ 29 /* Descriptor of an non-audio endpoint */
30 struct usb_endpoint_descriptor_no_audio { 30 struct usb_endpoint_descriptor_no_audio {
31 __u8 bLength; 31 __u8 bLength;
32 __u8 bDescriptorType; 32 __u8 bDescriptorType;
33 33
34 __u8 bEndpointAddress; 34 __u8 bEndpointAddress;
35 __u8 bmAttributes; 35 __u8 bmAttributes;
36 __le16 wMaxPacketSize; 36 __le16 wMaxPacketSize;
37 __u8 bInterval; 37 __u8 bInterval;
38 } __attribute__((packed)); 38 } __attribute__((packed));
39 39
40 struct usb_functionfs_descs_head_v2 { 40 struct usb_functionfs_descs_head_v2 {
41 __le32 magic; 41 __le32 magic;
42 __le32 length; 42 __le32 length;
43 __le32 flags; 43 __le32 flags;
44 /* 44 /*
45 * __le32 fs_count, hs_count, fs_count 45 * __le32 fs_count, hs_count, fs_count; must be included manually in
46 * the structure taking flags into con 46 * the structure taking flags into consideration.
47 */ 47 */
48 } __attribute__((packed)); 48 } __attribute__((packed));
49 49
50 /* Legacy format, deprecated as of 3.14. */ 50 /* Legacy format, deprecated as of 3.14. */
51 struct usb_functionfs_descs_head { 51 struct usb_functionfs_descs_head {
52 __le32 magic; 52 __le32 magic;
53 __le32 length; 53 __le32 length;
54 __le32 fs_count; 54 __le32 fs_count;
55 __le32 hs_count; 55 __le32 hs_count;
56 } __attribute__((packed, deprecated)); 56 } __attribute__((packed, deprecated));
57 57
58 /* MS OS Descriptor header */ 58 /* MS OS Descriptor header */
59 struct usb_os_desc_header { 59 struct usb_os_desc_header {
60 __u8 interface; 60 __u8 interface;
61 __le32 dwLength; 61 __le32 dwLength;
62 __le16 bcdVersion; 62 __le16 bcdVersion;
63 __le16 wIndex; 63 __le16 wIndex;
64 union { 64 union {
65 struct { 65 struct {
66 __u8 bCount; 66 __u8 bCount;
67 __u8 Reserved; 67 __u8 Reserved;
68 }; 68 };
69 __le16 wCount; 69 __le16 wCount;
70 }; 70 };
71 } __attribute__((packed)); 71 } __attribute__((packed));
72 72
73 struct usb_ext_compat_desc { 73 struct usb_ext_compat_desc {
74 __u8 bFirstInterfaceNumber; 74 __u8 bFirstInterfaceNumber;
75 __u8 Reserved1; 75 __u8 Reserved1;
76 __struct_group(/* no tag */, IDs, /* n 76 __struct_group(/* no tag */, IDs, /* no attrs */,
77 __u8 CompatibleID[8]; 77 __u8 CompatibleID[8];
78 __u8 SubCompatibleID[8]; 78 __u8 SubCompatibleID[8];
79 ); 79 );
80 __u8 Reserved2[6]; 80 __u8 Reserved2[6];
81 }; 81 };
82 82
83 struct usb_ext_prop_desc { 83 struct usb_ext_prop_desc {
84 __le32 dwSize; 84 __le32 dwSize;
85 __le32 dwPropertyDataType; 85 __le32 dwPropertyDataType;
86 __le16 wPropertyNameLength; 86 __le16 wPropertyNameLength;
87 } __attribute__((packed)); 87 } __attribute__((packed));
88 88
89 /* Flags for usb_ffs_dmabuf_transfer_req->flag 89 /* Flags for usb_ffs_dmabuf_transfer_req->flags (none for now) */
90 #define USB_FFS_DMABUF_TRANSFER_MASK 0x0 90 #define USB_FFS_DMABUF_TRANSFER_MASK 0x0
91 91
92 /** 92 /**
93 * struct usb_ffs_dmabuf_transfer_req - Transf 93 * struct usb_ffs_dmabuf_transfer_req - Transfer request for a DMABUF object
94 * @fd: file descriptor of the DMABUF 94 * @fd: file descriptor of the DMABUF object
95 * @flags: one or more USB_FFS_DMABUF_TRA 95 * @flags: one or more USB_FFS_DMABUF_TRANSFER_* flags
96 * @length: number of bytes used in this D 96 * @length: number of bytes used in this DMABUF for the data transfer.
97 * Should generally be set to the 97 * Should generally be set to the DMABUF's size.
98 */ 98 */
99 struct usb_ffs_dmabuf_transfer_req { 99 struct usb_ffs_dmabuf_transfer_req {
100 int fd; 100 int fd;
101 __u32 flags; 101 __u32 flags;
102 __u64 length; 102 __u64 length;
103 } __attribute__((packed)); 103 } __attribute__((packed));
104 104
105 #ifndef __KERNEL__ 105 #ifndef __KERNEL__
106 106
107 /* 107 /*
108 * Descriptors format: 108 * Descriptors format:
109 * 109 *
110 * | off | name | type | descript 110 * | off | name | type | description |
111 * |-----+-----------+--------------+--------- 111 * |-----+-----------+--------------+--------------------------------------|
112 * | 0 | magic | LE32 | FUNCTION 112 * | 0 | magic | LE32 | FUNCTIONFS_DESCRIPTORS_MAGIC_V2 |
113 * | 4 | length | LE32 | length o 113 * | 4 | length | LE32 | length of the whole data chunk |
114 * | 8 | flags | LE32 | combinat 114 * | 8 | flags | LE32 | combination of functionfs_flags |
115 * | | eventfd | LE32 | eventfd 115 * | | eventfd | LE32 | eventfd file descriptor |
116 * | | fs_count | LE32 | number o 116 * | | fs_count | LE32 | number of full-speed descriptors |
117 * | | hs_count | LE32 | number o 117 * | | hs_count | LE32 | number of high-speed descriptors |
118 * | | ss_count | LE32 | number o 118 * | | ss_count | LE32 | number of super-speed descriptors |
119 * | | os_count | LE32 | number o 119 * | | os_count | LE32 | number of MS OS descriptors |
120 * | | fs_descrs | Descriptor[] | list of 120 * | | fs_descrs | Descriptor[] | list of full-speed descriptors |
121 * | | hs_descrs | Descriptor[] | list of 121 * | | hs_descrs | Descriptor[] | list of high-speed descriptors |
122 * | | ss_descrs | Descriptor[] | list of 122 * | | ss_descrs | Descriptor[] | list of super-speed descriptors |
123 * | | os_descrs | OSDesc[] | list of 123 * | | os_descrs | OSDesc[] | list of MS OS descriptors |
124 * 124 *
125 * Depending on which flags are set, various f 125 * Depending on which flags are set, various fields may be missing in the
126 * structure. Any flags that are not recognis 126 * structure. Any flags that are not recognised cause the whole block to be
127 * rejected with -ENOSYS. 127 * rejected with -ENOSYS.
128 * 128 *
129 * Legacy descriptors format (deprecated as of 129 * Legacy descriptors format (deprecated as of 3.14):
130 * 130 *
131 * | off | name | type | descript 131 * | off | name | type | description |
132 * |-----+-----------+--------------+--------- 132 * |-----+-----------+--------------+--------------------------------------|
133 * | 0 | magic | LE32 | FUNCTION 133 * | 0 | magic | LE32 | FUNCTIONFS_DESCRIPTORS_MAGIC |
134 * | 4 | length | LE32 | length o 134 * | 4 | length | LE32 | length of the whole data chunk |
135 * | 8 | fs_count | LE32 | number o 135 * | 8 | fs_count | LE32 | number of full-speed descriptors |
136 * | 12 | hs_count | LE32 | number o 136 * | 12 | hs_count | LE32 | number of high-speed descriptors |
137 * | 16 | fs_descrs | Descriptor[] | list of 137 * | 16 | fs_descrs | Descriptor[] | list of full-speed descriptors |
138 * | | hs_descrs | Descriptor[] | list of 138 * | | hs_descrs | Descriptor[] | list of high-speed descriptors |
139 * 139 *
140 * All numbers must be in little endian order. 140 * All numbers must be in little endian order.
141 * 141 *
142 * Descriptor[] is an array of valid USB descr 142 * Descriptor[] is an array of valid USB descriptors which have the following
143 * format: 143 * format:
144 * 144 *
145 * | off | name | type | descriptio 145 * | off | name | type | description |
146 * |-----+-----------------+------+----------- 146 * |-----+-----------------+------+--------------------------|
147 * | 0 | bLength | U8 | length of 147 * | 0 | bLength | U8 | length of the descriptor |
148 * | 1 | bDescriptorType | U8 | descriptor 148 * | 1 | bDescriptorType | U8 | descriptor type |
149 * | 2 | payload | | descriptor 149 * | 2 | payload | | descriptor's payload |
150 * 150 *
151 * OSDesc[] is an array of valid MS OS Feature 151 * OSDesc[] is an array of valid MS OS Feature Descriptors which have one of
152 * the following formats: 152 * the following formats:
153 * 153 *
154 * | off | name | type | descriptio 154 * | off | name | type | description |
155 * |-----+-----------------+------+----------- 155 * |-----+-----------------+------+--------------------------|
156 * | 0 | inteface | U8 | related in 156 * | 0 | inteface | U8 | related interface number |
157 * | 1 | dwLength | U32 | length of 157 * | 1 | dwLength | U32 | length of the descriptor |
158 * | 5 | bcdVersion | U16 | currently 158 * | 5 | bcdVersion | U16 | currently supported: 1 |
159 * | 7 | wIndex | U16 | currently 159 * | 7 | wIndex | U16 | currently supported: 4 |
160 * | 9 | bCount | U8 | number of 160 * | 9 | bCount | U8 | number of ext. compat. |
161 * | 10 | Reserved | U8 | 0 161 * | 10 | Reserved | U8 | 0 |
162 * | 11 | ExtCompat[] | | list of ex 162 * | 11 | ExtCompat[] | | list of ext. compat. d. |
163 * 163 *
164 * | off | name | type | descriptio 164 * | off | name | type | description |
165 * |-----+-----------------+------+----------- 165 * |-----+-----------------+------+--------------------------|
166 * | 0 | inteface | U8 | related in 166 * | 0 | inteface | U8 | related interface number |
167 * | 1 | dwLength | U32 | length of 167 * | 1 | dwLength | U32 | length of the descriptor |
168 * | 5 | bcdVersion | U16 | currently 168 * | 5 | bcdVersion | U16 | currently supported: 1 |
169 * | 7 | wIndex | U16 | currently 169 * | 7 | wIndex | U16 | currently supported: 5 |
170 * | 9 | wCount | U16 | number of 170 * | 9 | wCount | U16 | number of ext. compat. |
171 * | 11 | ExtProp[] | | list of ex 171 * | 11 | ExtProp[] | | list of ext. prop. d. |
172 * 172 *
173 * ExtCompat[] is an array of valid Extended C 173 * ExtCompat[] is an array of valid Extended Compatiblity descriptors
174 * which have the following format: 174 * which have the following format:
175 * 175 *
176 * | off | name | type | desc 176 * | off | name | type | description |
177 * |-----+-----------------------+------+----- 177 * |-----+-----------------------+------+-------------------------------------|
178 * | 0 | bFirstInterfaceNumber | U8 | inde 178 * | 0 | bFirstInterfaceNumber | U8 | index of the interface or of the 1st|
179 * | | | | inte 179 * | | | | interface in an IAD group |
180 * | 1 | Reserved | U8 | 1 180 * | 1 | Reserved | U8 | 1 |
181 * | 2 | CompatibleID | U8[8]| comp 181 * | 2 | CompatibleID | U8[8]| compatible ID string |
182 * | 10 | SubCompatibleID | U8[8]| subc 182 * | 10 | SubCompatibleID | U8[8]| subcompatible ID string |
183 * | 18 | Reserved | U8[6]| 0 183 * | 18 | Reserved | U8[6]| 0 |
184 * 184 *
185 * ExtProp[] is an array of valid Extended Pro 185 * ExtProp[] is an array of valid Extended Properties descriptors
186 * which have the following format: 186 * which have the following format:
187 * 187 *
188 * | off | name | type | desc 188 * | off | name | type | description |
189 * |-----+-----------------------+------+----- 189 * |-----+-----------------------+------+-------------------------------------|
190 * | 0 | dwSize | U32 | leng 190 * | 0 | dwSize | U32 | length of the descriptor |
191 * | 4 | dwPropertyDataType | U32 | 1..7 191 * | 4 | dwPropertyDataType | U32 | 1..7 |
192 * | 8 | wPropertyNameLength | U16 | bPro 192 * | 8 | wPropertyNameLength | U16 | bPropertyName length (NL) |
193 * | 10 | bPropertyName |U8[NL]| name 193 * | 10 | bPropertyName |U8[NL]| name of this property |
194 * |10+NL| dwPropertyDataLength | U32 | bPro 194 * |10+NL| dwPropertyDataLength | U32 | bPropertyData length (DL) |
195 * |14+NL| bProperty |U8[DL]| payl 195 * |14+NL| bProperty |U8[DL]| payload of this property |
196 */ 196 */
197 197
198 struct usb_functionfs_strings_head { 198 struct usb_functionfs_strings_head {
199 __le32 magic; 199 __le32 magic;
200 __le32 length; 200 __le32 length;
201 __le32 str_count; 201 __le32 str_count;
202 __le32 lang_count; 202 __le32 lang_count;
203 } __attribute__((packed)); 203 } __attribute__((packed));
204 204
205 /* 205 /*
206 * Strings format: 206 * Strings format:
207 * 207 *
208 * | off | name | type 208 * | off | name | type | description |
209 * |-----+------------+----------------------- 209 * |-----+------------+-----------------------+----------------------------|
210 * | 0 | magic | LE32 210 * | 0 | magic | LE32 | FUNCTIONFS_STRINGS_MAGIC |
211 * | 4 | length | LE32 211 * | 4 | length | LE32 | length of the data chunk |
212 * | 8 | str_count | LE32 212 * | 8 | str_count | LE32 | number of strings |
213 * | 12 | lang_count | LE32 213 * | 12 | lang_count | LE32 | number of languages |
214 * | 16 | stringtab | StringTab[lang_count] 214 * | 16 | stringtab | StringTab[lang_count] | table of strings per lang |
215 * 215 *
216 * For each language there is one stringtab en 216 * For each language there is one stringtab entry (ie. there are lang_count
217 * stringtab entires). Each StringTab has fol 217 * stringtab entires). Each StringTab has following format:
218 * 218 *
219 * | off | name | type | descr 219 * | off | name | type | description |
220 * |-----+---------+-------------------+------ 220 * |-----+---------+-------------------+------------------------------------|
221 * | 0 | lang | LE16 | langu 221 * | 0 | lang | LE16 | language code |
222 * | 2 | strings | String[str_count] | array 222 * | 2 | strings | String[str_count] | array of strings in given language |
223 * 223 *
224 * For each string there is one strings entry 224 * For each string there is one strings entry (ie. there are str_count
225 * string entries). Each String is a NUL term 225 * string entries). Each String is a NUL terminated string encoded in
226 * UTF-8. 226 * UTF-8.
227 */ 227 */
228 228
229 #endif 229 #endif
230 230
231 231
232 /* 232 /*
233 * Events are delivered on the ep0 file descri 233 * Events are delivered on the ep0 file descriptor, when the user mode driver
234 * reads from this file descriptor after writi 234 * reads from this file descriptor after writing the descriptors. Don't
235 * stop polling this descriptor. 235 * stop polling this descriptor.
236 */ 236 */
237 237
238 enum usb_functionfs_event_type { 238 enum usb_functionfs_event_type {
239 FUNCTIONFS_BIND, 239 FUNCTIONFS_BIND,
240 FUNCTIONFS_UNBIND, 240 FUNCTIONFS_UNBIND,
241 241
242 FUNCTIONFS_ENABLE, 242 FUNCTIONFS_ENABLE,
243 FUNCTIONFS_DISABLE, 243 FUNCTIONFS_DISABLE,
244 244
245 FUNCTIONFS_SETUP, 245 FUNCTIONFS_SETUP,
246 246
247 FUNCTIONFS_SUSPEND, 247 FUNCTIONFS_SUSPEND,
248 FUNCTIONFS_RESUME 248 FUNCTIONFS_RESUME
249 }; 249 };
250 250
251 /* NOTE: this structure must stay the same si 251 /* NOTE: this structure must stay the same size and layout on
252 * both 32-bit and 64-bit kernels. 252 * both 32-bit and 64-bit kernels.
253 */ 253 */
254 struct usb_functionfs_event { 254 struct usb_functionfs_event {
255 union { 255 union {
256 /* SETUP: packet; DATA phase i 256 /* SETUP: packet; DATA phase i/o precedes next event
257 *(setup.bmRequestType & USB_D 257 *(setup.bmRequestType & USB_DIR_IN) flags direction */
258 struct usb_ctrlrequest setup; 258 struct usb_ctrlrequest setup;
259 } __attribute__((packed)) u; 259 } __attribute__((packed)) u;
260 260
261 /* enum usb_functionfs_event_type */ 261 /* enum usb_functionfs_event_type */
262 __u8 type; 262 __u8 type;
263 __u8 _pad[3 263 __u8 _pad[3];
264 } __attribute__((packed)); 264 } __attribute__((packed));
265 265
266 266
267 /* Endpoint ioctls */ 267 /* Endpoint ioctls */
268 /* The same as in gadgetfs */ 268 /* The same as in gadgetfs */
269 269
270 /* IN transfers may be reported to the gadget 270 /* IN transfers may be reported to the gadget driver as complete
271 * when the fifo is loaded, before the ho 271 * when the fifo is loaded, before the host reads the data;
272 * OUT transfers may be reported to the host's 272 * OUT transfers may be reported to the host's "client" driver as
273 * complete when they're sitting in the F 273 * complete when they're sitting in the FIFO unread.
274 * THIS returns how many bytes are "unclaimed" 274 * THIS returns how many bytes are "unclaimed" in the endpoint fifo
275 * (needed for precise fault handling, when th 275 * (needed for precise fault handling, when the hardware allows it)
276 */ 276 */
277 #define FUNCTIONFS_FIFO_STATUS _IO('g', 1) 277 #define FUNCTIONFS_FIFO_STATUS _IO('g', 1)
278 278
279 /* discards any unclaimed data in the fifo. */ 279 /* discards any unclaimed data in the fifo. */
280 #define FUNCTIONFS_FIFO_FLUSH _IO('g', 2) 280 #define FUNCTIONFS_FIFO_FLUSH _IO('g', 2)
281 281
282 /* resets endpoint halt+toggle; used to implem 282 /* resets endpoint halt+toggle; used to implement set_interface.
283 * some hardware (like pxa2xx) can't support t 283 * some hardware (like pxa2xx) can't support this.
284 */ 284 */
285 #define FUNCTIONFS_CLEAR_HALT _IO('g', 3) 285 #define FUNCTIONFS_CLEAR_HALT _IO('g', 3)
286 286
287 /* Specific for functionfs */ 287 /* Specific for functionfs */
288 288
289 /* 289 /*
290 * Returns reverse mapping of an interface. C 290 * Returns reverse mapping of an interface. Called on EP0. If there
291 * is no such interface returns -EDOM. If fun 291 * is no such interface returns -EDOM. If function is not active
292 * returns -ENODEV. 292 * returns -ENODEV.
293 */ 293 */
294 #define FUNCTIONFS_INTERFACE_REVMAP _IO('g 294 #define FUNCTIONFS_INTERFACE_REVMAP _IO('g', 128)
295 295
296 /* 296 /*
297 * Returns real bEndpointAddress of an endpoin 297 * Returns real bEndpointAddress of an endpoint. If endpoint shuts down
298 * during the call, returns -ESHUTDOWN. 298 * during the call, returns -ESHUTDOWN.
299 */ 299 */
300 #define FUNCTIONFS_ENDPOINT_REVMAP _IO('g 300 #define FUNCTIONFS_ENDPOINT_REVMAP _IO('g', 129)
301 301
302 /* 302 /*
303 * Returns endpoint descriptor. If endpoint sh 303 * Returns endpoint descriptor. If endpoint shuts down during the call,
304 * returns -ESHUTDOWN. 304 * returns -ESHUTDOWN.
305 */ 305 */
306 #define FUNCTIONFS_ENDPOINT_DESC _IOR(' 306 #define FUNCTIONFS_ENDPOINT_DESC _IOR('g', 130, \
307 s 307 struct usb_endpoint_descriptor)
308 308
309 /* 309 /*
310 * Attach the DMABUF object, identified by its 310 * Attach the DMABUF object, identified by its file descriptor, to the
311 * data endpoint. Returns zero on success, and 311 * data endpoint. Returns zero on success, and a negative errno value
312 * on error. 312 * on error.
313 */ 313 */
314 #define FUNCTIONFS_DMABUF_ATTACH _IOW(' 314 #define FUNCTIONFS_DMABUF_ATTACH _IOW('g', 131, int)
315 315
316 316
317 /* 317 /*
318 * Detach the given DMABUF object, identified 318 * Detach the given DMABUF object, identified by its file descriptor,
319 * from the data endpoint. Returns zero on suc 319 * from the data endpoint. Returns zero on success, and a negative
320 * errno value on error. Note that closing the 320 * errno value on error. Note that closing the endpoint's file
321 * descriptor will automatically detach all at 321 * descriptor will automatically detach all attached DMABUFs.
322 */ 322 */
323 #define FUNCTIONFS_DMABUF_DETACH _IOW(' 323 #define FUNCTIONFS_DMABUF_DETACH _IOW('g', 132, int)
324 324
325 /* 325 /*
326 * Enqueue the previously attached DMABUF to t 326 * Enqueue the previously attached DMABUF to the transfer queue.
327 * The argument is a structure that packs the 327 * The argument is a structure that packs the DMABUF's file descriptor,
328 * the size in bytes to transfer (which should 328 * the size in bytes to transfer (which should generally correspond to
329 * the size of the DMABUF), and a 'flags' fiel 329 * the size of the DMABUF), and a 'flags' field which is unused
330 * for now. Returns zero on success, and a neg 330 * for now. Returns zero on success, and a negative errno value on
331 * error. 331 * error.
332 */ 332 */
333 #define FUNCTIONFS_DMABUF_TRANSFER _IOW(' 333 #define FUNCTIONFS_DMABUF_TRANSFER _IOW('g', 133, \
334 s 334 struct usb_ffs_dmabuf_transfer_req)
335 335
336 #endif /* _UAPI__LINUX_FUNCTIONFS_H__ */ 336 #endif /* _UAPI__LINUX_FUNCTIONFS_H__ */
337 337
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.