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-rw-r--r--include/linux/usb/vstusb.h71
1 files changed, 0 insertions, 71 deletions
diff --git a/include/linux/usb/vstusb.h b/include/linux/usb/vstusb.h
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1/*****************************************************************************
2 * File: drivers/usb/misc/vstusb.h
3 *
4 * Purpose: Support for the bulk USB Vernier Spectrophotometers
5 *
6 * Author: EQware Engineering, Inc.
7 * Oregon City, OR, USA 97045
8 *
9 * Copyright: 2007, 2008
10 * Vernier Software & Technology
11 * Beaverton, OR, USA 97005
12 *
13 * Web: www.vernier.com
14 *
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License version 2 as
17 * published by the Free Software Foundation.
18 *
19 *****************************************************************************/
20/*****************************************************************************
21 *
22 * The vstusb module is a standard usb 'client' driver running on top of the
23 * standard usb host controller stack.
24 *
25 * In general, vstusb supports standard bulk usb pipes. It supports multiple
26 * devices and multiple pipes per device.
27 *
28 * The vstusb driver supports two interfaces:
29 * 1 - ioctl SEND_PIPE/RECV_PIPE - a general bulk write/read msg
30 * interface to any pipe with timeout support;
31 * 2 - standard read/write with ioctl config - offers standard read/write
32 * interface with ioctl configured pipes and timeouts.
33 *
34 * Both interfaces can be signal from other process and will abort its i/o
35 * operation.
36 *
37 * A timeout of 0 means NO timeout. The user can still terminate the read via
38 * signal.
39 *
40 * If using multiple threads with this driver, the user should ensure that
41 * any reads, writes, or ioctls are complete before closing the device.
42 * Changing read/write timeouts or pipes takes effect on next read/write.
43 *
44 *****************************************************************************/
45
46struct vstusb_args {
47 union {
48 /* this struct is used for IOCTL_VSTUSB_SEND_PIPE, *
49 * IOCTL_VSTUSB_RECV_PIPE, and read()/write() fops */
50 struct {
51 void __user *buffer;
52 size_t count;
53 unsigned int timeout_ms;
54 int pipe;
55 };
56
57 /* this one is used for IOCTL_VSTUSB_CONFIG_RW */
58 struct {
59 int rd_pipe;
60 int rd_timeout_ms;
61 int wr_pipe;
62 int wr_timeout_ms;
63 };
64 };
65};
66
67#define VST_IOC_MAGIC 'L'
68#define VST_IOC_FIRST 0x20
69#define IOCTL_VSTUSB_SEND_PIPE _IO(VST_IOC_MAGIC, VST_IOC_FIRST)
70#define IOCTL_VSTUSB_RECV_PIPE _IO(VST_IOC_MAGIC, VST_IOC_FIRST + 1)
71#define IOCTL_VSTUSB_CONFIG_RW _IO(VST_IOC_MAGIC, VST_IOC_FIRST + 2)