linux-kernel - Re: query regarding usb-hotplug

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Message-ID: <20070905061753.GA31005@kroah.com>
Date:	Tue, 4 Sep 2007 23:17:53 -0700
From:	Greg KH <greg@...ah.com>
To:	Renuka Pampana <prenuka@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: query regarding usb-hotplug

On Mon, Sep 03, 2007 at 05:27:23PM +0530, Renuka Pampana wrote:
> hi all,
> 
>  iam having one doubt about the usb driver application. i written one
> small application  (u can see this file usbthread.c
> in attachment 

Nothing was attached :(


> , cc -o usbthread usbthread.c -lpthread -lusb (for
> compilation) ) on usb device drivers using LIBUSB-0.1.12
> in user space. my project leader has given one task about the usb
> device drivers in user space. so using lib usb library and
> written application in user space. we are getting out put as device
> properties in userspace. but we are using polling
> mechanism ( declaring one thread and calling one usb function as
> subroutine in thread, this thread calling usb function
>  continuously and it  has put in  infinity loop). but my task have to
> develop  this same application with out using poling.
> 
> i heared an event mechanism for with out polling. but i dont know how
> to develop event mechanism.
> 
> plz give me any idea to develop the hot plugging system by using event
> mechanism...
> 
> i hope to get reply as soon as possible .

Try asking this on the libusb mailing list, the developers there should
be able to help you out.

good luck,

greg k-h
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