Alan Stern wrote:
On Mon, 8 Nov 2004, L Rotger wrote:
Hi,
I have a USB external case that works ok under a stock 2.4.27 with a Ali PCI card (EHCI+OHCI). However I cannot make it "forget" the characteristics of the hard disk. If I attach another hard disk (different capacity, therefore different partition table) and reconnect the USB case, it recognizes only the case and insists the HD inside is the first one. How can I make it forget it (ie. delete /proc/scsi/usb-storage-0, but I cannot delete it). What do I do? the only procedure that works so far is rebooting the computer?
As Stephen Gowdy mentioned, you can try removing the usb-storage driver.
You may also want to check out this patch posted to lkml in late Sept.
http://marc.theaimsgroup.com/?l=linux-kernel&m=109607676924576&w=2
Steve
On Mon, 8 Nov 2004, jong jong wrote:
Well, currently I configured it as part of kernel instead of module..... :-(
But anyway, if on an embedded device, there are only
limited device nodes, how to tell the kernel to
release the device node when a usb storage device is
disconnected? Obviously in kernel, usb driver knows
when a specific device is unplugged and scsi driver
knows a sd unit is detached, so is there any way we
can release the specific device node and reuse it next
time?
Read section 4.3.1 of the SCSI-Programming-HOWTO. It explains the "remove-single-device" command.
Alan Stern
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