samples/hid/hid_bpf_helpers.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /* Copyright (c) 2022 Benjamin Tissoires
   3  */
   4
   5 #ifndef __HID_BPF_HELPERS_H
   6 #define __HID_BPF_HELPERS_H
   7
   8 /* following are kfuncs exported by HID for HID-BPF */
   9 extern __u8 *hid_bpf_get_data(struct hid_bpf_ctx *ctx,
  10                               unsigned int offset,
  11                               const size_t __sz) __ksym;
  12 extern int hid_bpf_attach_prog(unsigned int hid_id, int prog_fd, u32 flags) __ksym;
  13 extern struct hid_bpf_ctx *hid_bpf_allocate_context(unsigned int hid_id) __ksym;
  14 extern void hid_bpf_release_context(struct hid_bpf_ctx *ctx) __ksym;
  15 extern int hid_bpf_hw_request(struct hid_bpf_ctx *ctx,
  16                               __u8 *data,
  17                               size_t buf__sz,
  18                               enum hid_report_type type,
  19                               enum hid_class_request reqtype) __ksym;
  20
  21 #endif /* __HID_BPF_HELPERS_H */