Messages in this thread | | | Date | Thu, 11 Oct 2007 19:15:16 -0400 | From | Chuck Ebbert <> | Subject | Re: Regression from 2.6.21 to 2.6.22 and above |
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On 10/11/2007 06:41 AM, Stefan Scheler wrote: > Hello, > > my Kobil KAAN Professional (USB variant) smartcard reader stopped > working when upgrading from 2.6.21 to 2.6.22 (and 2.6.23). Not working > means that the latest libct.so supplied from Kobil is segfaulting when > trying to access the device. But as far as I can see the kobil_sct > driver itself didn't change from 2.6.21 to 2.6.22. Any ideas what is > going on here? > > Thanks in advance. I will provide additional information if needed. >
Try turning off USB autosuspend by adding the kernel option "usbcore.autosuspend=-1". Or if your USB is modular, add "autosuspend=-1" to the module parameters.
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