Hi all. I tested on os11, with all power-management disabled.
0. Insert a pen-drive. a) Inserted modem in another slot; the modem is detected. b) Reboot. c) Modem is NOT detected. d) Remove modem. e) Insert modem; the modem is detected. I tried the above steps 5 times; and the results were same. Also, please find attached a sample python script, which lists all the detected network-devices. When this script is run as "python nm_test.py" in step c), the modem-device is not detected by this script as well; whereas in other cases, this script detects the device. ================================================================================ Another sequence :: 0. Ensure that there is no pen-drive inserted in any of the USB slots. a) Inserted modem; the modem is detected. b) Reboot. c) Modem is detected. d) Remove modem. e) Insert modem; the modem is detected. I tried the above steps 5 times; and the results were same. =============================================================================================== I will try the same steps with os12, once I am finished downloading it. =============================================================================================== I don't have a XO-1.5; so can't try on it :-\ On Wed, Nov 21, 2012 at 3:18 PM, Richard A. Smith <rich...@laptop.org>wrote: > On 11/21/2012 01:07 AM, Jerry Vonau wrote: > > >> Dropping the power to the usb bus is making the modem play peek-a-boo >> with the kernel: >> http://dev.laptop.org/ticket/**10708<http://dev.laptop.org/ticket/10708> >> . >> <http://dev.laptop.org/ticket/**10708<http://dev.laptop.org/ticket/10708> >> > >> > > And just to be clear its more than just a power dropping problem. Both > 1.75 and XO-4 both have the ability to keep the USB bus powered during > suspend (with an EC firmware change) but on resume the kernel resets the > USB bus. I don't know if the kernel has an option not to do that. > > > -- > Richard A. Smith <rich...@laptop.org> > One Laptop per Child > ______________________________**_________________ > Devel mailing list > Devel@lists.laptop.org > http://lists.laptop.org/**listinfo/devel<http://lists.laptop.org/listinfo/devel> > Regards, Ajay
nm_test.py
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