On Wed, 02 Sep, at 06:31:36AM, Kweh Hock Leong wrote: > > I have done an experiment on that by using the misc char device file note. > I included the flush() callback function to the fops. In flush(), I put a > printk() > and return -EINVAL. When I perform "cat XXX > /dev/XXX" on Intel Quark > Galileo platform, I found that the flush() is not just being called at file > close, it will also being called before the file write. And the error return, > that I > forced in the flush(), does not show up at shell terminal. This is the reason > that > I did not follow James recommendation and figure out to do it at write().
OK, that's interesting. Which cat tool is included with the Quark BSP? -- Matt Fleming, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
