| 1 | /*
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| 2 | * Copyright (c) 2010 Vojtech Horky
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup libusb
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| 30 | * @{
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| 31 | */
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| 32 | /** @file
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| 33 | * Common USB functions.
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| 34 | */
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| 35 | #include <usb/usb.h>
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| 36 | #include <errno.h>
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| 37 |
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| 38 | static const char *str_speed[] = {
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| 39 | "low",
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| 40 | "full",
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| 41 | "high"
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| 42 | };
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| 43 | static size_t str_speed_size = sizeof(str_speed)/sizeof(str_speed[0]);
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| 44 |
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| 45 | /** String representation for USB transfer type.
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| 46 | *
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| 47 | * @param t Transfer type.
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| 48 | * @return Transfer type as a string (in English).
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| 49 | */
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| 50 | const char * usb_str_transfer_type(usb_transfer_type_t t)
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| 51 | {
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| 52 | switch (t) {
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| 53 | case USB_TRANSFER_ISOCHRONOUS:
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| 54 | return "isochronous";
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| 55 | case USB_TRANSFER_INTERRUPT:
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| 56 | return "interrupt";
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| 57 | case USB_TRANSFER_CONTROL:
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| 58 | return "control";
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| 59 | case USB_TRANSFER_BULK:
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| 60 | return "bulk";
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| 61 | default:
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| 62 | return "unknown";
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| 63 | }
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| 64 | }
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| 65 |
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| 66 | /** String representation of USB speed.
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| 67 | *
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| 68 | * @param s The speed.
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| 69 | * @return USB speed as a string (in English).
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| 70 | */
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| 71 | const char *usb_str_speed(usb_speed_t s)
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| 72 | {
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| 73 | if (s >= str_speed_size) {
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| 74 | return "invalid";
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| 75 | }
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| 76 | return str_speed[s];
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| 77 | }
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| 78 |
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| 79 | /**
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| 80 | * @}
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| 81 | */
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