01-12-2017
Does it still think there is a mounted filesystem perhaps too?
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I have to do a lot of reporting for the company that I work for and was wondering if anyone had suggestions for a way to create professional looking reports. I currently use Filepro so much that I rarely see the shell. Any help is appreciated. (3 Replies)
Discussion started by: Mike11
3 Replies
2. UNIX for Dummies Questions & Answers
Hi everyone, I'm completely new to the board and to UNIX and I have the following question regarding a script I am building.
I am trying to copy an entire directory into a new directory and I was wondering if there is any way of printing on screen a progress report, for example a percentage. It... (9 Replies)
Discussion started by: Ypnos
9 Replies
3. Shell Programming and Scripting
hi all,
i've got a script that takes in what a user enters (multiple entries) and then joins them all together and appends this to a file. what i want to happen now is the terminal should display "record saved" if the save to the file is successful, if it isn't just display the standard unix... (2 Replies)
Discussion started by: wazzag
2 Replies
4. Shell Programming and Scripting
Hi:-
I am working on an audit report that produces a monthly summary of account activity on a particular AIX host. I am struggling with su activity and failed logins as these tend to come back with more then a month's data.
Is there a easy way that these files can be rotated/cleaned out on a... (1 Reply)
Discussion started by: janet
1 Replies
5. UNIX for Advanced & Expert Users
Hi
My client connection to RAC Oracle Release 10.2.0.4.0 database suddenly stopped working.
ACPT_1 - works but not with OEM.
ACPT_2 - does not work at all.
Getting error ORA-12564: TNS:connection refused
Any ideas very much appreciated
Thanks
ACPT_1 =
(DESCRIPTION =
... (4 Replies)
Discussion started by: zam
4 Replies
6. UNIX for Dummies Questions & Answers
I am very new to unix/linux and am unsure how to do the following tasks within my script
1) append a log file and add a timestamped echo "Error occured" to it, if posibble to print it to file and on screen at the same time would be even better.
2) As my main script will be calling on a couple... (1 Reply)
Discussion started by: shamwick
1 Replies
7. Shell Programming and Scripting
Hi All,
I have bash script, so what is sintax script in bash for Enable and Disable Tab Key. Thanks for your help.:(
Thanks,
Rico (1 Reply)
Discussion started by: carnegiex
1 Replies
8. Red Hat
Hi all Expertise,
I have following issue to solve,
SSL / TLS Renegotiation DoS (low) 222.225.12.13
Ease of Exploitation Moderate
Port 443/tcp
Family Miscellaneous
Following is the problem description:------------------
Description The remote service encrypts traffic using TLS / SSL and... (2 Replies)
Discussion started by: manalisharmabe
2 Replies
9. Shell Programming and Scripting
Below is a typical report
each of the lines represent the fields in the report
component1
component2
<pattern>
..
..
n lines ...
..
VIOL = 2
the command should display
component1
component2
VIOL = 2
only if pattern field of the report is "good"
component1 and... (8 Replies)
Discussion started by: dll_fpga
8 Replies
10. SCO
Hi,
I am using SCO UNIX version 6.0.0 release 5. I am using du and df space to see the used space in the / partition. I am using du -k option to get count in 1024 k so that it directly makes kb. In dfspace I subtracted the used mb from total size mb which should be the used space and then... (40 Replies)
Discussion started by: dextergenious
40 Replies
USB(4) BSD Kernel Interfaces Manual USB(4)
NAME
usb -- Universal Serial Bus
SYNOPSIS
To compile this driver into the kernel, place the following line in your kernel configuration file:
device usb
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
usb_load="YES"
USERLAND PROGRAMMING
USB functions can be accessed from userland through the libusb library. See libusb(3) for more information.
DESCRIPTION
FreeBSD provides machine-independent bus support and drivers for USB devices in host and device side mode.
The usb driver has three layers:
USB Controller (Bus)
USB Device
USB Driver
The controller attaches to a physical bus like pci(4). The USB bus attaches to the controller, and the root hub attaches to the controller.
Any devices attached to the bus will attach to the root hub or another hub attached to the USB bus.
The uhub device will always be present as it is needed for the root hub.
INTRODUCTION TO USB
The USB is a system where external devices can be connected to a PC. The most common USB speeds are:
Low Speed (1.5MBit/sec)
Full Speed (12MBit/sec)
High Speed (480MBit/sec)
Each USB has a USB controller that is the master of the bus. The physical communication is simplex which means the host controller only com-
municates with one USB device at a time.
There can be up to 127 devices connected to an USB HUB tree. The addresses are assigned dynamically by the host when each device is attached
to the bus.
Within each device there can be up to 16 endpoints. Each endpoint is individually addressed and the addresses are static. Each of these
endpoints will communicate in one of four different modes: control, isochronous, bulk, or interrupt. A device always has at least one end-
point. This endpoint has address 0 and is a control endpoint and is used to give commands to and extract basic data, such as descriptors,
from the device. Each endpoint, except the control endpoint, is unidirectional.
The endpoints in a device are grouped into interfaces. An interface is a logical unit within a device; e.g. a compound device with both a
keyboard and a trackball would present one interface for each. An interface can sometimes be set into different modes, called alternate set-
tings, which affects how it operates. Different alternate settings can have different endpoints within it.
A device may operate in different configurations. Depending on the configuration, the device may present different sets of endpoints and
interfaces.
The bus enumeration of the USB bus proceeds in several steps:
1. Any interface specific driver can attach to the device.
2. If none is found, generic interface class drivers can attach.
SEE ALSO
The USB specifications can be found at:
http://www.usb.org/developers/docs/
libusb(3), usbdi(4), aue(4), axe(4), cue(4), ehci(4), kue(4), ohci(4), pci(4), rue(4), ucom(4), udav(4), uhci(4), uhid(4), ukbd(4), ulpt(4),
umass(4), ums(4), uplcom(4), urio(4), uvscom(4), usbconfig(8)
STANDARDS
The usb module complies with the USB 2.0 standard.
HISTORY
The usb module has been inspired by the NetBSD USB stack initially written by Lennart Augustsson. The usb module was written by Hans Petter
Selasky <hselasky@freebsd.org>.
BSD
May 20, 2009 BSD