drivers/w1/slaves/w1_smem.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *      w1_smem.c
   4  *
   5  * Copyright (c) 2004 Evgeniy Polyakov <zbr@ioremap.net>
   6  */
   7
   8 #include <asm/types.h>
   9
  10 #include <linux/kernel.h>
  11 #include <linux/module.h>
  12 #include <linux/moduleparam.h>
  13 #include <linux/device.h>
  14 #include <linux/types.h>
  15
  16 #include <linux/w1.h>
  17
  18 #define W1_FAMILY_SMEM_01       0x01
  19 #define W1_FAMILY_SMEM_81       0x81
  20
  21 static struct w1_family w1_smem_family_01 = {
  22         .fid = W1_FAMILY_SMEM_01,
  23 };
  24
  25 static struct w1_family w1_smem_family_81 = {
  26         .fid = W1_FAMILY_SMEM_81,
  27 };
  28
  29 static int __init w1_smem_init(void)
  30 {
  31         int err;
  32
  33         err = w1_register_family(&w1_smem_family_01);
  34         if (err)
  35                 return err;
  36
  37         err = w1_register_family(&w1_smem_family_81);
  38         if (err) {
  39                 w1_unregister_family(&w1_smem_family_01);
  40                 return err;
  41         }
  42
  43         return 0;
  44 }
  45
  46 static void __exit w1_smem_fini(void)
  47 {
  48         w1_unregister_family(&w1_smem_family_01);
  49         w1_unregister_family(&w1_smem_family_81);
  50 }
  51
  52 module_init(w1_smem_init);
  53 module_exit(w1_smem_fini);
  54
  55 MODULE_AUTHOR("Evgeniy Polyakov <zbr@ioremap.net>");
  56 MODULE_DESCRIPTION("Driver for 1-wire Dallas network protocol, 64bit memory family.");
  57 MODULE_LICENSE("GPL");
  58 MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_SMEM_01));
  59 MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_SMEM_81));