From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Ionescu Subject: Re: kernel 2.6.10 , uhci-hcd problem after ACPI S3 suspend. Date: Sat, 1 Jan 2005 20:37:42 -0800 (PST) Message-ID: <20050102043742.11965.qmail@web50205.mail.yahoo.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: In-Reply-To: Sender: linux-usb-devel-admin@lists.sourceforge.net Errors-To: linux-usb-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: acpi-devel@lists.sourceforge.net, linux-usb-devel@lists.sourceforge.net List-Id: linux-acpi@vger.kernel.org Hi Alan, My UHCI is sharing interrupt 9 with acpi. IRQ 9 usage does increment after the resume. And also, even after the resume, when the USB is not seeing any device plugged in, if I unload and reload the uhci-hcd, then it works. Maybe, when I reload uhci-hcd, it does some reinitialization of the usb controller. --- Alan Stern wrote: > On Wed, 29 Dec 2004, Paul Ionescu wrote: > > > Hello Alan, > > > > If I boot with "acpi=off" then I cannot use ACPI > S3 to > > suspend and resume, and my problem appears after > an > > ACPI S3 suspend/resume cycle. > > This just occurred to me: After a suspend/resume, > when the uhci_hcd driver > doesn't recognize new devices being plugged in, can > you tell if the > interrupt count for the driver is changing? If the > host controller > doesn't share an IRQ, the numbers in > /proc/interrupts will tell the story. > > As another test, what shows up in the debugging file > for the controller? > Under 2.6.9 that file would be in the > /proc/driver/uhci/ directory, but it > was recently moved to the debugfs filesystem, and > I'm not sure whether > that move was done before or after 2.6.10 was > released. > > Alan Stern > > __________________________________ Do you Yahoo!? Jazz up your holiday email with celebrity designs. Learn more. http://celebrity.mail.yahoo.com ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel