I've searched a number of sites but thought I'd post it here. I'm want to a detect certain usb device (external camera) that is actively being used by an app on a mac.
My search has led me through looking at the system events log to see if there is a ProductID indicator logged. The device is plugged into the same so researching on how to check any output from the port.
Anyone thoughts on additional ways to tackle this? am i in the right place> appreciate any feedback
So for I have a bash script that detects the usb devices on a mac
The following usb devices detected and written to a log file:
hey everyone!
i have a Solaris 8 box with me, and i had been using my usb thrumbdrive on it all the time. one day, i was in a rush and i pulled out the thumbdrive without ejecting it or anything. and now i can't detect any thumbdrives at all. i had tried using another thumbdrive, but with no... (2 Replies)
Hello All: I hope this is the right category...
I have a application (this app runs under java and jboss) that runs under Windows, it's started as a service. If that application should become disabled, crash or no longer function, what would be the best method for determining it is no longer... (6 Replies)
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.
tHANKS (10 Replies)
Hi, I am a newbi to linux,
i wana to write a program in C that can detect arrival of a usb flash memory. I want also to find the actual mount point of new inserted flash disk. can anyone help me?
thanks a lot (6 Replies)
Hello. This is my first post to this forum. I've read many of the posts over the last two or three years and I've learned a lot.
I'm creating a live Linux distribution using the Linux Live Scripts -- just as a hobby project -- and I'm wanting to create an automated way for a user to copy the... (7 Replies)
Hi there,
I have a Debian machine without any peripherals (no screen, no keyboard, etc.). I'd like to be able to detect and log when someone plugs a USB keyboard. Something like : 2009-07-04 12:21 warning: keyboard pluged!
Is that possible?
I see two ways :
1. Either actively react to the... (4 Replies)
There is a same named log file that I have on my 2 different android phones. When I plug it into my computer, it appears in the media folder, For example the first android phone:
/media/F6BA-0AF5/folder/A.log
I want to put that into a variable to be manipulated.... (3 Replies)
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)
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
4 Replies
LEARN ABOUT FREEBSD
uled
ULED(4) BSD Kernel Interfaces Manual ULED(4)NAME
uled -- USB LED driver
SYNOPSIS
To compile this driver into the kernel, place the following lines into your kernel configuration file:
device uled
device usb
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
uled_load="YES"
DESCRIPTION
The uled driver provides support for the Dream Cheeky WebMail Notifier device.
Subsequently, the /dev/uled0 device can be used by userland applications.
IOCTLS
The following ioctl(2) commands can be performed on /dev/uled0, which are defined in <dev/usb/uled_ioctl.h>:
ULED_GET_COLOR
The command returns LED colors with values for RGB. This ioctl(2) takes the following structure:
struct uled_color {
uint8_t red;
uint8_t green;
uint8_t blue;
};
ULED_SET_COLOR
The command sets LED colors with values for RGB. It uses the same structure as above.
FILES
/dev/uled0 blocking device node
SEE ALSO ohci(4), uhci(4), usb(4)AUTHORS
The uled driver was written by Kevin Lo <kevlo@FreeBSD.org>.
BSD September 5, 2014 BSD