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List: libusb-devel
Subject: Re: [libusb] Other speed configuration descriptor
From: Tim Roberts <timr () probo ! com>
Date: 2020-07-29 0:30:07
Message-ID: C2C95D96-276F-4971-98FD-7F751A8B4139 () probo ! com
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On Jul 28, 2020, at 7:17 AM, Hanan Ivry <hanani@sepio.systems \
<mailto:hanani@sepio.systems>> wrote:
>
> I have a issue... I try to get the usb descriptor and I got device descriptor, \
> configuration descriptor, interfaces descriptor, end points descriptor. But I can \
> read device qualifier(006) and other speed configuration (007):-( Do you have any \
> idea how can I read dynamic descriptor details from your code?
Both of those (along with the interface descriptors and the endpoint descriptors) are \
part of the configuration descriptor. There are only three descriptor types you can \
read directly: device descriptor, configuration descriptor, and string descriptors. \
All the other descriptors are part of the configuration descriptor. —
Tim Roberts, timr@probo.com <mailto:timr@probo.com>
Providenza & Boekelheide, Inc.
[Attachment #5 (unknown)]
<html><head><meta http-equiv="Content-Type" content="text/html; \
charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; \
line-break: after-white-space;" class=""><meta http-equiv="Content-Type" \
content="text/html; charset=utf-8" class=""><div style="word-wrap: break-word; \
-webkit-nbsp-mode: space; line-break: after-white-space;" class="">On Jul 28, 2020, \
at 7:17 AM, Hanan Ivry <<a href="mailto:hanani@sepio.systems" \
class="">hanani@sepio.systems</a>> wrote:<br class=""><div class=""><blockquote \
type="cite" class=""><br class="Apple-interchange-newline"><div class=""><div \
style="font-style: normal; font-variant-caps: normal; font-weight: normal; \
letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; \
white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; \
text-decoration: none; font-family: Calibri, Arial, Helvetica, sans-serif; font-size: \
12pt;" class=""><span style="font-size: 12pt;" class="">I have a issue... I try to \
get the usb descriptor and I got device descriptor, configuration descriptor, \
interfaces descriptor, end points descriptor. </span></div><div \
style="font-style: normal; font-variant-caps: normal; font-weight: normal; \
letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; \
white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; \
text-decoration: none; font-family: Calibri, Arial, Helvetica, sans-serif; font-size: \
12pt;" class="">But I can read device qualifier(006) and other speed configuration \
(007):-(</div><div style="font-style: normal; font-variant-caps: normal; font-weight: \
normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: \
none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; \
text-decoration: none; font-family: Calibri, Arial, Helvetica, sans-serif; font-size: \
12pt;" class="">Do you have any idea how can I read dynamic descriptor details from \
your code?</div></div></blockquote><div class=""><br class=""></div><div \
class="">Both of those (along with the interface descriptors and the endpoint \
descriptors) are part of the configuration descriptor. There are only three \
descriptor types you can read directly: device descriptor, configuration \
descriptor, and string descriptors. All the other descriptors are part of the \
configuration descriptor.</div></div><div class=""> — <br class="">Tim \
Roberts, <a href="mailto:timr@probo.com" class="">timr@probo.com</a><br \
class="">Providenza & Boekelheide, Inc. </div>
<br class=""></div></body></html>
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