Listing of usb devices with libusb-1.0 is too slow and not usable for
flashing or cold-flashing Nokia N900.
Old libusb (0.1) does not have this problem and works perfectly.
Problem for libusb-1.0 was reported at least two times into libusb-devel
mailing list, but upstream developers are totally ignore it. One message is
in archive: https://sourceforge.net/p/libusb/mailman/message/34985373/
Because of that there is just one option: use tested and working libusb 0.1
library instead some experimental and non-working libusb-1.0.
Accept also OMAP3630 in the ASIC ID offset 4. With this patch it's
possible communicate also with N950/N9. When plugging in the USB cable
into a powered-off device, it seems to start in cold-flash mode, and
currently 0xFFFF fails with "Invalid ASIC ID."
So far only loading & booting kernel with "0xFFFF -m kernel:zImage -l -b"
has been tested, and it works.
WARNING: When booting a self-made kernel on N950/N9, NOLO will detect this
and will permanently show a crappy disclaimer about warranty voided during
the boot, even if you boot again with a stock Nokia kernel. This may also
impact some SW functionality. I have no idea how to reset this condition.
Pali Rohár