[linux-usb-devel] problem with EHCI port status register

2007-05-17 Thread Tomohiro Kusumi
Hi I'm using HP storageworks USB DAT device on RHEL4 (based on kernel 2.6.9). It works okay most of the times, but sometimes the driver does not detect the device (about 1 out of 10 times). No other USB devices are used on the system. Let me explain some details. I turned on the CONFIG_USB_DEBUG

Re: [linux-usb-devel] problem with EHCI port status register

2007-05-18 Thread Alan Stern
On Fri, 18 May 2007, Tomohiro Kusumi wrote: > Hi > > I'm using HP storageworks USB DAT device on RHEL4 (based on kernel 2.6.9). > It works okay most of the times, but sometimes the driver does not detect > the device (about 1 out of 10 times). No other USB devices are used on the > system. Let me

Re: [linux-usb-devel] problem with EHCI port status register

2007-06-12 Thread Tomohiro Kusumi
Hi Alan > This could be a problem with the BIOS. You might try going through the > BIOS setup and turning off support for Legacy USB or anything else > which might cause the BIOS to interfere with USB operations. Thanks for pointing out the possible BIOS problem regarding the EHCI port st

Re: [linux-usb-devel] problem with EHCI port status register

2007-06-12 Thread Alan Stern
On Tue, 12 Jun 2007, Tomohiro Kusumi wrote: > Hi Alan > > > This could be a problem with the BIOS. You might try going through the > > BIOS setup and turning off support for Legacy USB or anything else > > which might cause the BIOS to interfere with USB operations. > > Thanks for pointing