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On Thu, Jan 19, 2006 at 10:35:37AM +0530, Mukund JB. wrote: > > > > -----Original Message-----> > From: Greg KH [mailto:greg@kroah.com]> > Sent: Thursday, January 19, 2006 10:33 AM> > To: Mukund JB.> > Cc: linux-kernel@vger.kernel.org> > Subject: Re: clarity on kref needed.> > > > > > On Thu, Jan 19, 2006 at 10:15:51AM +0530, Mukund JB. wrote: > > > > > > > > I have gone through kref and am planning to implement then > > > > in my usb driver.> > > > > > > > What kind of usb driver?> > > It is a finger print authentication USB driver. it doesn ot do the > > > authgentication but transports data to the application which really > > > does some processing.> > > > You shouldn't need a kernel driver for this, it can be done > > in userspace> > with libusb/usbfs, right?> > I mean I will register a char driver. I will just write a simple char > kernel module to read data from the USB device and zero copy it to the > userspace application. I guess that is the minimum work we need to do. You can do that from userspace with libusb/usbfs with no kernel driver needed. Why not do that instead? > Is there any other way using libusb/usbfs in which we can do this > without a need of USB kernel driver? Yes, use libusb/usbfs :) > > > No, I did not find any Documentation/kref.txt.> > > But I have read about kred in the link below:> > > > > http://developer.osdl.org/dev/robustmutexes/src/fusyn.hg/Docum> entation/kref.txt> > >> > >Is kref depricated because I find nothing related to it in linux/Documentation/?> > > What kernel version are you looking at? Look in the kernel source tree > > from kernel.org. What kernel tree are you building your driver against.> > I am planning it for 2.6.11.12. That's a pretty old kernel version, why not use the latest version? thanks, greg k-h - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | |||||||||
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