patch-2.3.26 linux/drivers/usb/README.dc2xx

• Lines: 106
• Date: Fri Nov 5 15:54:01 1999
• Orig file: v2.3.25/linux/drivers/usb/README.dc2xx
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.25/linux/drivers/usb/README.dc2xx linux/drivers/usb/README.dc2xx
@@ -0,0 +1,105 @@
+3 November 1999
+david-b@pacbell.net
+
+This is an overview of how to use the "dc2xx" USB driver with certain
+digital still cameras from Kodak and other vendors.
+
+
+CAMERAS
+
+This driver will mostly be used with Kodak DC-2xx series digital still
+cameras, but it should be trivial to tell it about several non-Kodak
+USB-enabled cameras.
+
+You'll most likely want to hook it up to recent versions of "gPhoto"
+(www.gphoto.org), since version 0.4 and later know how to use it to talk
+to Kodak DC-240 and DC-280 cameras over USB.
+
+The DC-260 is currently recognized.  However, like other cameras using the
+"Digita OS" (from www.flashpoint.com) there is no application software
+(such as gPhoto) support for this camera.  Until it's available, those
+cameras aren't much use with Linux; when it's available, this driver
+should be able to handle the cameras' communication requirements.  Today,
+that's six more cameras.  From Kodak:  DC-220, DC-260, DC-265, DC-290.
+Minolta has the Dimage EX-1500; HP, the PhotoSmart C500.
+
+It's likely that other digital still cameras can also use this USB driver,
+even if they're not from Kodak and don't use Digita.  The reason is that
+most currently known USB still camera protocols treat USB like a faster
+packet-carrying connection than a serial line, which is exactly how this
+driver looks to an application.
+
+
+USB HARDWARE
+
+This has been shown to work on x86 OHCI and UHCI (Intel) chipsets.  OHCI has
+been trouble free; not so with UHCI, which was first seen to be happy with
+2.3.24 kernels.
+
+As yet, no reports have come from Linux users on non-Intel hardware.
+(You could color coordinate your iMac with a DC-240i ... :-)
+
+
+SETUP
+
+Configure in the DC2XX USB driver, and have it in your kernel.  Recently I
+compile it right in, but I've done it as a module in the past.
+
+Create a device, perhaps like this (both read and write):
+
+    # mknod -m 0666 /dev/kodak c 10 170
+
+That "170" is not formally assigned, and this command may change.  If you're
+using a non-Kodak camera, you may prefer another name.
+
+Don't plug in more than one compatible camera at this time.  One of them
+will be ignored, but I'd not be sure which one!
+
+
+SANITY TESTING
+
+First:  if you've got /proc support, make sure that the driver has hooked
+itself up correctly.
+
+    - you should see an entry in /proc/misc for the a Kodak DC-2xx
+      minor device number
+
+    - you should see an entry in /proc/bus/usb/drivers for "dc2xx",
+      if you also enabled USB /proc support.
+
+Second:  when you connect your camera to the computer, does it get recognized
+by the driver?
+
+    - if you've got /proc/bus/usb/devices, you should see an entry
+      something like this.  The "ProdID" may be different if you didn't
+      plug in a DC-240, but the "Driver=dc2xx" had better be there.
+
+	T:  Lev=01 Prnt=00 Port=00 Cnt=01 Dev#=  1 Spd=12  MxCh= 0
+	D:  Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
+	P:  Vendor=040a ProdID=0120 Rev= 1.08
+	C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=100mA
+	I:  If#= 0 Alt= 0 #EPs= 2 Cls=00(>ifc ) Sub=00 Prot=00 Driver=dc2xx
+	E:  Ad=01(O) Atr=02(Bulk) MxPS=  64 Ivl=  0ms
+	E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=  0ms
+
+    - if you don't have /proc support for USB, see if "dmesg" output
+      tells you that you plugged in your camera.
+
+	USB new device connect, assigned device number 1
+	Manufacturer: Eastman Kodak Company
+	Product: KODAK DC240 Zoom Digital Camera
+	USB Camera (Kodak DC-240) is connected
+	usbcore: dc2xx driver claimed interface c3a68600
+	ohci-control thread sleeping
+
+Third:  (optional) can you use gPhoto to talk to the camera?
+
+    - When you configure your camera, tell it to use "/dev/kodak" (or
+      whatever name you used).  Right now, gPhoto emits a diagnostic
+      message (non-GUI) saying that it since it didn't act like a TTY,
+      it's assuming it's got a USB connection.
+
+    - With the camera turned on, get the "camera summary".  It'll
+      talk to the camera -- and tell you you're using USB.
+
+If you got that far, you should be able to use everything fine.