On Tue, Nov 01, 2005 at 01:04:02PM +0000, David Woodhouse wrote: > On Tue, 2005-11-01 at 13:40 +0100, Duncan Sands wrote: > > this code looks like a 'orrible hack to work around a common problem > > with USB modem's of this type: if the modem is plugged in while the > > system boots, the driver may look for firmware before the filesystem > > holding the firmware is mounted; I guess the delay usually gives > > the filesystem enough time to be mounted. I'm told that the correct > > solution is to stick the firmware in an initramfs as well. > > Why can't we request the firmware again when the device is first used, > if it wasn't present when the driver was first loaded?
Because the firmware loading can take long, and apps may legitimately give up opening the device after a timeout. Besides, it doesn't look logical. An uninitialized device is not particularly useful for anything but initialization. You don't create, say, a network device for your ethernet card until you're finished with its PCI setup, do you? I think the async firmware loading can do the job nicely, in a generic manner. BTW the usbatm drivers do it already (wasn't it you who implemented it? :), long before request_firmware_nowait() was available. So it's only a matter of tools adjusting, which seems to be going on. Roman. ------------------------------------------------------- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. Download it for free - -and be entered to win a 42" plasma tv or your very own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
