On Wed, Sep 13, 2006 at 11:26:04AM +0100, Tony Olech wrote: > This "ftdi-elan" module is one half of the "driver" for > ELAN's Uxxx series adapters which are USB to PCMCIA CardBus > adapters. Currently only the U132 adapter is available and > it's module is called "u132-hcd". > > When the USB hot plug subsystem detects a Uxxx series adapter > it should load this module. > > Upon a successful device probe() the jtag device file interface > is created and the status workqueue started up. > > The jtag device file interface exists for the purpose of > updating the firmware in the Uxxx series adapter, but as > yet it had never been used. > > The status workqueue initializes the Uxxx and then sits there > polling the Uxxx until a supported PCMCIA CardBus device is > detected it will start the command and respond workqueues > and then load the module that handles the device. This will > initially be only the u132-hcd module. The status workqueue > then just polls the Uxxx looking for card ejects. > > The command and respond workqueues implement a command > sequencer for communicating with the firmware on the other > side of the FTDI chip in the Uxxx. This "ftdi-elan" module > exports some functions to interface with the sequencer. > > Note that this module is a USB client driver. > > Note that the "u132-hcd" module is a (cut-down OHCI) > host controller. > > Thus we have a topology with the parent of a host controller > being a USB client! This really stresses the USB subsystem > semaphore/mutex handling in the module removal. > > Signed-off-by: Tony Olech <[EMAIL PROTECTED]>
I've applied this and fixed the build issue (again with the drivers/usb/Makefile file) and the Kconfig entries don't need to be duplicated so many times :) Also, I've fixed up the sparse warnings, but you are doing something very wierd with the user buffer still, and I get these warnings: drivers/usb/misc/ftdi-elan.c:1231:65: warning: dereference of noderef expression drivers/usb/misc/ftdi-elan.c:1237:65: warning: dereference of noderef expression with sparse still. I think it's a bunch of debug code that is remaining in that function, care to send me a follow-on patch that removes it? thanks, greg k-h ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
