USB_COPY_DESCRIPTORS(9) Kernel Mode Gadget API USB_COPY_DESCRIPTORS(9)NAME
usb_copy_descriptors - copy a vector of USB descriptors
struct usb_descriptor_header ** usb_copy_descriptors(struct usb_descriptor_header ** src);
null-terminated vector to copy
initialization code, which may sleep
This makes a copy of a vector of USB descriptors. Its primary use is to support usb_function objects which can have multiple copies, each
needing different descriptors. Functions may have static tables of descriptors, which are used as templates and customized with identifiers
(for interfaces, strings, endpoints, and more) as needed by a given function instance.
David Brownell <firstname.lastname@example.org>
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 USB_COPY_DESCRIPTORS(9)
Check Out this Related Man Page
USB_INTERFACE_ID(9) Kernel Mode Gadget API USB_INTERFACE_ID(9)NAME
usb_interface_id - allocate an unused interface ID
int usb_interface_id(struct usb_configuration * config, struct usb_function * function);
configuration associated with the interface
function handling the interface
single threaded during gadget setup
usb_interface_id is called from usb_function.bind callbacks to allocate new interface IDs. The function driver will then store that ID in
interface, association, CDC union, and other descriptors. It will also handle any control requests targetted at that interface,
particularly changing its altsetting via set_alt. There may also be class-specific or vendor-specific requests to handle.
All interface identifier should be allocated using this routine, to ensure that for example different functions don't wrongly assign
different meanings to the same identifier. Note that since interface identifers are configuration-specific, functions used in more than one
configuration (or more than once in a given configuration) need multiple versions of the relevant descriptors.
Returns the interface ID which was allocated; or -ENODEV if no more interface IDs can be allocated.
David Brownell <email@example.com>
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 USB_INTERFACE_ID(9)
I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX.
Ok onto business, my questions are-:
Was/Is UNIX ever an open source operating system ?
If UNIX was... (21 Replies)
Hello and thanks in advance for any help anyone can offer me
I'm trying to learn the find command and thought I was understanding it... Apparently I was wrong. I was doing compound searches and I started getting weird results with the -size test. I was trying to do a search on a 1G file owned by... (14 Replies)
i have installed quota on my centos 7 machine and its what im after (setting size limit on users, so they cant fill the hard drive)
i want to now make this part of my create user script for my sftp server so i want to do a echo and a read command so i capture the limit they enter... (0 Replies)
I need to write a shell script which opens a file and increments the version(text) within the file every time the script runs. For example:
$ cat docker_file.yml
So, I would like... (6 Replies)
We use DB2 v10.5 and using DBArtisan tool
Can someone please guide how to convert digits to binary numbers using db2 feature.
Ex> for number 9 , binary should be 1001 ( 8+1)
Any help appreciated. Thanks (2 Replies)
how to using tar with exclude directory and compress it using tar.Z
i only know how to exclude dir only with this command below:
tar -cvf /varios/restore/test.tar -X excludefile.txt /jfma/test1/
how to compress it using 1 command?
Please use CODE tags as... (6 Replies)
Quite an obscure question I think.
We have a rebuild process for remote sites that allows us to PXE rebuild a till (actually a PC with a touch screen and various fancy bits) running CentOS. The current CentOS5 tills work just fine with a tar image restore and some personalisation. Sadly,... (4 Replies)
I had recently learnt a bit of Docker(which provides containerization process).
Here are some of my learning points from it.
Let us start first with very basic question:
What is Docker:
Docker is a platform for sysadmins and developers to DEPLOY, DEVELOP and RUN applications ... (7 Replies)
What is the point of this? Whenever I close my shell it appends to the history file without adding this. I have never seen it overwrite my history file.
# When the shell exits, append to the history file instead of overwriting it
shopt -s histappend (3 Replies)
Hello... And thanks in advance for any help anyone can offer me
I was trying to work out the differences between displaying modify, access, and change times with the 'ls' command. Everything seems in order when I look at files, but the access time on a directory doesn't seem to change when I... (4 Replies)
I am having an issue here with CentOS release 6.6 (Final) that shows all of the space used up, but I can't tell where the space went.
Seemingly I am using up 100%, according to
Filesystem Size Used Avail Use% Mounted on... (27 Replies)
I'm trying to use a bash script for a psych experiment that involves listening to sound files and responding. If I have something like the code below, how can I make sure that a key press is assigned to RESPONSE only after the second echo statement?
for i in 1 2 3; do
... (10 Replies)
After the success of the jq - tool for parsing and manipulating JSON-Data someone wrote a tool called yq, which aims to be the same for YAML, what jq is for JSON. Seems to work fine. I'll definitely give it a chance in future.
... (1 Reply)
I am very pleased to announce that Dave Munro (gull04) is joining the Moderation Team, after being a very valuable member of UNIX.com for 15+ years.
Dave is an IT Consultant with 30 years of experience this year, has worked in many of the industry vertical market segments and has... (6 Replies)