On 12/30/02 16:55, Joel Hammer wrote:
I am still fussing with digital photos.If you could manage to unload usbcore, then you'd get the desired result. However, i've never had any luck unloading usbcore once its loaded (under a 2.4.x kernel, perhaps the rules are different for 2.5.x).
I would like to have my digital camera, with a usb connection, tethered to a
computer (linux). I would like to shoot a series of photos with the camera,
then, with a simple command on the computer, transfer those photos to the
computer.
The problem is that when you plug in the usb cable into the camera, the
camera goes out of the picture taking mode, so it is useless for photos.
However, if I plug in the usb cable without the cable being connected to
the computer, the camera stays in the picture taking mode. Voila. This
suggests there may be a solution.
So, the obvious questions are:
1. Is there such a beast as a usb switch box which would accomplish this
with a minimum of fuss?
2. Is there a way to disable the usb socket via software, like removing
modules or sending a 0 into a file in /proc ?
I have tried taking out all the usb modules, but that didn't work.
Here are the modules I load to get the usb port to work with my camera:
Module Size Used by
usb-storage 23284 0 (unused)
nls_iso8859-1 2636 0
ide-scsi 7428 0
sr_mod 11800 0
sg 21692 0
sd_mod 9832 0
scsi_mod 53024 4 [usb-storage ide-scsi sr_mod sg sd_mod]
hid 12016 0 (unused)
usb-uhci 21720 0 (unused)
usbcore 27940 0 [usb-storage hid usb-uhci]
With all these modules gone, plugging in the cable still turns off the
camera.
Is there a USB driver that could be compiled as a module which I have
built into the kernel ?
Yea, IEEE1394 hardware is still quite pricy. Its not being marketed as well as USB, and AFAIK, only Macs, and some laptops come standard with a firewire port.Now, according to the salesmen, I could use a firewire connection to do what I want, but, amazingly, those cameras cost several thousand dollars more than the usb camera (Nikons).
--
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L. Friedman [EMAIL PROTECTED]
Linux Step-by-step & TyGeMo: http://netllama.ipfox.com
5:00pm up 16 days, 9 min, 2 users, load average: 0.03, 0.08, 0.14
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