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em_base);
34. }
35.
36. return 0;
37.}
38.
39.static int device_release(struct inode *inode, struct file *file)
40.{
41. return 0;
42.}
43.
44.
45.static ssize_t device_read(struct file *filp, char *buffer, size_t length, loff_t *offset)
46.{
47. /*int ret_val = 0;
48.
49. char * data = NULL; 论文网
50.
51. data = (char*)kmalloc(4, GFP_KERNEL);
52. if((ret_val = copy_from_user(new_regs, (struct reg_data*)ioctl_param, sizeof(struct reg_data))) != 0)
53.
54. ioread32(g_mkg_mem_base+length);
55. printk("============read:%d\n",);*/
56.
57. return 1;
58.}
59.
60.static ssize_t device_write(struct file *filp, const char *buffer, size_t count, loff_t *offset)
61.{
62. //iowrite32(2,g_mkg_mem_base);
63. return 1;
64.}
65.
66.long device_ioctl(struct file *file, unsigned int ioctl_num, unsigned long ioctl_param)
67.{
68.#if 0
69.
70. int ret_val = 0;
71. unsigned int ret = 0;
72. struct reg_data *new_regs;
73. printk("ioctl======\n");
74.
75. switch(ioctl_num)
76. {
77. case IOCTL_REG_SET:
78. {
79. new_regs = (struct reg_data*)kmalloc(sizeof(struct reg_data), GFP_KERNEL);
80. if((ret_val = copy_from_user(new_regs, (struct reg_data*)ioctl_param, sizeof(struct reg_data))) != 0)
81. {
82. kfree(new_regs);
83. printk(KERN_ERR " error copy line_datafrom user.\n");
84. return -1;
85. }
86.
87. //iowrite16(new_regs->value,g_mkg_mem_base+new_regs->addr);
88. k上一页 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] ... 下一页 >>
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