>>> We have a stand-alone device with a USB I/F for downloading code to Flash >>> memory. Currently the only means of downloading the Flash code is via a >>> DOS program (actually running from DOS, not Windows). We are trying to >>> move this to Linux to eliminate the need for DOS. A skeleton driver is up >>> and answers the probe requests. >>> The question is, how does an application attach to and send IOCTL to a USB >>> driver?
>>If you are only downloading firmware, I'd recommend using >>usbdevfs/usbfs. This allows userspace programs to talk to usb devices. >>See libusb for an easier interface to the devices: http://libusb.sf.net/ >> >>As for sending an ioctl to a driver, see the ioctl(2) man page :) >> >>thanks, >> >>greg k-h >It is not the ioctl command itself that I really had a question about. My >real question should have been: >What parameter do you pass to the 'open' command to retrieve a file >descriptor to use in subsequent ioctl commands? If the USB driver registered and the physical device shows up, should the driver show up under /dev/usb? Output of /proc for usb is below: /proc/bus/usb/drivers: usbdevfs hub acm usb-storage 96-111: ggusb /proc/bus/usb/devices: T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 0.00 S: Product=USB UHCI-alt Root Hub S: SerialNumber=fca0 C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 8 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=0572 ProdID=cafe Rev= 0.01 S: Manufacturer=? S: Product=?????????????? S: SerialNumber=???????? C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=500mA I: If#= 0 Alt= 0 #EPs= 7 Cls=00(>ifc ) Sub=00 Prot=00 Driver=ggusb E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms E: Ad=01(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms E: Ad=83(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms E: Ad=03(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms E: Ad=84(I) Atr=03(Int.) MxPS= 8 Ivl=200ms /proc/bus/usb/001: 001 008 Thanks, Dan _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
