08-06-2011
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
How do I save a script to a pen drive? (3 Replies)
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2. Linux
Hi Folks,
I want to know how to mount usb device (cd,dvd etc) in linux,
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Manoj (4 Replies)
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AM TRYING TO CONNECT A USB EXTERNAL DRIVE FOR BACKUP,THE USB SLOT IS AVAILABLE,BUT I DONT KNOW IF IT IS READY WHEN I CONNECT IT,AND WHAT COMMANDS DO I NEED.
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4. UNIX and Linux Applications
When I attach a USB storage device to my Solaris server, the mount point is coming up as /rmdisk/unnamed_rmdisk
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5. UNIX for Dummies Questions & Answers
hi, I was wondering if there's a way to safely disconnect a usb device from computer, I ask this because in windows when you disconnect a usb pen with the safe removal, the pen light then turns off, while I tried removing the pen with solaris and the light was still on ? (2 Replies)
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Hi friends,
I wanna know how to block USB devices in my RedHat flavor Operating system.
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7. UNIX for Advanced & Expert Users
In linux system when a pnp usb device is plugged in then how does the system gets a notification of it?
I mean to say in linux usb system there is usb host controller above which is host controller driver above which is usb core.
So does the host controller/usb core keeps on polling the usb bus... (1 Reply)
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8. Ubuntu
hi all:
as we know , when usb flash disk plug in and aotu mounted , the default permission of the usb flash disk is 700. that means others have no permission . the question: how to make others have read/write permission when the aotu mounted usb flash disk pluge in ? thanks !! (0 Replies)
Discussion started by: arnold.king
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Hi all
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10. UNIX for Advanced & Expert Users
Hi,
i am developing an application on an ARM 7 architatcure with a small Linux.
i want to run tar on a usb device (~10 Mb) but it runs realy slow. the command only takes 1% of cpu usage.
is there a way to improve the tar command or is the USB-Connection the bottleneck here? (4 Replies)
Discussion started by: louisk
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LEARN ABOUT DEBIAN
bcharge
BCHARGE(1) General Commands Manual BCHARGE(1)
NAME
bcharge - program to set BlackBerry handhelds to 500mA
SYNOPSIS
bcharge
DESCRIPTION
bcharge is a program that sends a special handshake to all BlackBerry devices it finds on the USB bus. This handshake causes the device to
reset itself, and then request 500mA instead of the usual 100mA. This allows proper charging on Linux.
It is safe to run this command multiple times, as it only changes devices that are not already set to 500mA, or are not in the desired
mode.
OPTIONS
-o For Blackberry Pearl devices, using this switch causes bcharge to set the Product ID to 0001.
When the Pearl is in 0004 mode, two USB interfaces are presented: one for database access and one for mass storage. In 0001 mode,
only the database access is available.
Before bcharge is run, the Pearl shows up with a Product ID of 0006, which only gives mass storage functionality. You must run
bcharge for the Pearl before using btool.
-d This switch is for the Blackberry Pearl to switch it back to 0004 dual mode after having run bcharge with the -o option. Alter-
nately, newer devices (such as Storm with product ID of 8007) will be switched to 0004. Since a Pearl in mode 0001 is practically
indistinguishable from a classic Blackberry, the -d switch is needed to tell bcharge that you really are working with a Pearl.
-g Guess whether Dual mode is needed. If USB Interface Class 255 is not found on the device (the class used for database access), then
dual mode is set. Otherwise, the device is left as is.
-h Help summary.
-p devpath
If your system runs a kernel with CONFIG_USB_SUSPEND enabled (some Ubuntu kernels have this turned on, as well as some Fedora 7 ker-
nels), then you also need to adjust the suspend state to avoid going into power saving mode. This option is used when run from
udev, using a rule such as:
BUS=="usb", SUBSYSTEM=="usb_device", ACTION=="add", SYSFS{idVendor}=="0fca", SYSFS{idProduct}=="0001", SYMLINK+="bb-%k",
GROUP="plugdev", MODE="0660", RUN="/usr/sbin/bcharge -p %p"
When using this option, you will almost always need to be root.
-s path
Specify the mount point for the sysfs filesystem. On most systems this is mounted at /sys which is the default.
AUTHOR
bcharge and this manual page were written by Chris Frey <cdfrey@foursquare.net> for the Barry project.
http://www.netdirect.ca/software/packages/barry
October 7, 2010 BCHARGE(1)