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6 | f9daq | 1 | /************************************************************************\ |
2 | ## ## |
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3 | ## Creation Date: 19 Mar 2007 ## |
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4 | ## Last Update: 19 Mar 2007 ## |
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5 | ## Author: XInstruments ## |
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6 | ## ## |
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7 | ## Desc: Driver main module header. ## |
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8 | ## ## |
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9 | \************************************************************************/ |
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10 | |||
11 | |||
12 | #include <linux/usb.h> |
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13 | |||
14 | |||
15 | #define USMC_DEV_NAME "8SMC-USB1h" |
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16 | #define USMC_PRODUCT_ID 0x0230 |
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17 | #define USMC_VENDOR_ID 0x10c4 |
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18 | #define USB_USMC_MINOR_BASE 192 // Get a minor range for your devices from the usb maintainer |
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19 | #define WRITES_IN_FLIGHT 8 |
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20 | #define USMC_SUCCESS 0 |
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21 | |||
22 | |||
23 | |||
24 | |||
25 | // Connect/Disconnect: |
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26 | static int usmc_probe ( struct usb_interface * interface, |
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27 | const struct usb_device_id * id ); |
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28 | static void usmc_disconnect ( struct usb_interface * interface ); |
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29 | // File operations: |
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30 | static long usmc_ioctl ( struct file * file, unsigned int ioctl_num, unsigned long ioctl_param ); |
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31 | static int usmc_open ( struct inode * inode, struct file * file ); |
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32 | static int usmc_release ( struct inode * inode, struct file * file ); |
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33 | // Util functions: |
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34 | static void usmc_delete ( struct kref * kref ); |
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35 | |||
36 | |||
37 | static struct usb_device_id usmc_table [] = { |
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38 | { USB_DEVICE ( USMC_VENDOR_ID, USMC_PRODUCT_ID ) }, |
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39 | {} // Terminating element. |
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40 | }; |
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41 | |||
42 | |||
43 | static struct usb_driver usmc_driver = { |
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44 | .name = USMC_DEV_NAME, |
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45 | .probe = usmc_probe, |
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46 | .disconnect = usmc_disconnect, |
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47 | .id_table = usmc_table |
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48 | }; |
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49 | |||
50 | |||
51 | /* Structure to hold all of our device specific stuff */ |
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52 | struct usb_usmc |
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53 | { |
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54 | struct usb_device * udev; /* the usb device for this device */ |
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55 | struct usb_interface * interface; /* the interface for this device */ |
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56 | struct semaphore limit_sem; /* limiting the number of writes in progress */ |
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57 | // unsigned char * bulk_in_buffer; /* the buffer to receive data */ |
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58 | // size_t bulk_in_size; /* the size of the receive buffer */ |
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59 | // __u8 bulk_in_endpointAddr; /* the address of the bulk in endpoint */ |
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60 | // __u8 bulk_out_endpointAddr; /* the address of the bulk out endpoint */ |
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61 | struct kref kref; |
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62 | }; |
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63 | |||
64 | #define to_usmc_dev(d) container_of(d, struct usb_usmc, kref) |
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65 | |||
66 | |||
67 | static struct file_operations usmc_fops = { |
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68 | .owner = THIS_MODULE, |
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69 | /* .read = usmc_read, |
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70 | .write = usmc_write,*/ |
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71 | .open = usmc_open, |
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72 | .release = usmc_release, |
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73 | .unlocked_ioctl = usmc_ioctl |
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74 | }; |
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75 | |||
76 | /* |
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77 | struct file_operations { |
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78 | struct module *owner; |
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79 | loff_t (*llseek) (struct file *, loff_t, int); |
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80 | ssize_t (*read) (struct file *, char __user *, size_t, loff_t *); |
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81 | ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *); |
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82 | ssize_t (*aio_read) (struct kiocb *, const struct iovec *, unsigned long, loff_t); |
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83 | ssize_t (*aio_write) (struct kiocb *, const struct iovec *, unsigned long, loff_t); |
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84 | int (*readdir) (struct file *, void *, filldir_t); |
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85 | unsigned int (*poll) (struct file *, struct poll_table_struct *); |
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86 | long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long); |
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87 | ..... |
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88 | */ |
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89 | |||
90 | |||
91 | /* |
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92 | * usb class driver info in order to get a minor number from the usb core, |
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93 | * and to have the device registered with the driver core |
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94 | */ |
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95 | static struct usb_class_driver usmc_class = { |
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96 | .name = "usmc%d", |
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97 | .fops = &usmc_fops, |
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98 | .minor_base = USB_USMC_MINOR_BASE |
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99 | }; |