Messages in this thread | | | Date | Mon, 25 Jul 2005 20:56:17 -0400 | From | Jon Smirl <> | Subject | Re: [PATCH] driver core: Add the ability to unbind drivers to devices from userspace |
| |
On 7/25/05, Greg KH <greg@kroah.com> wrote: > On Mon, Jul 25, 2005 at 08:28:10PM -0400, Jon Smirl wrote: > > I didn't realize that echo was adding the CR, I thought that it always > > appeared on the end of a sysfs attribute set. So now I have to go add > > white space stripping to a dozen fbdev/drm sysfs attribute > > implementations. Given that the param is const I may have to allocate > > new buffers and copy. I also wonder how many other people have made > > the same mistake. > > Nah, just zero out that \n character :)
The input buffer is "const char * buf". I will have to override the const to zero it out.
> > > Are you sure it would break other things? These are supposed to be > > text attributes, not binary ones. > > I agree, I don't know what would break. Care to make a patch so we > could find out?
I'll put one together to trim leading/trailing white space from the buffer before it is passed into the attribute functions. Now that I think about this I believe the attributes should have always had the leading/trailing white space removed. If we don't do it in the sysfs code then every driver has to do it.
-- Jon Smirl jonsmirl@gmail.com - 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/
| |