On Sun, 4 Sep 2011, Lin Ming wrote: > On Sun, Sep 4, 2011 at 9:49 PM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > > > >> Where does this exit signal come from? > >> Does USB interrupt handler will send kill signal to all processes > >> accessing it when it's unplugged(by hand)? > > > > The USB stack does not send any signals at all unless a process > > specifically asks for them. > > How to ask? With the USBDEVFS_DISCSIGNAL ioctl. > I have not checked, but think umount code path will not send signal to process. I don't think so either. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
