Hi How do I read the contents of ehci host controller capability registers and operational registers using the driver ? I see that ehci-dbg.c has all the necessary information to extract the register contents, however I do not know how to make use of it.
Regards Vivek -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chuck Ebbert Sent: Friday, September 23, 2005 2:29 PM To: David Brownell; [email protected] Cc: [EMAIL PROTECTED] Subject: [linux-usb-devel] Re: OHCI is claiming my USB 2.0 devices In-Reply-To: <[EMAIL PROTECTED]> On Fri, 23 Sep 2005 at 11:05:39 -0700, David Brownell wrote: > > OHCI is claiming my USB 2.0 hub, connected to the built-in USB port > > on my x86-64 notebook. > > Or to say it more correctly: "ehci is NOT claiming it". > If it's not doing that, there's some sort of hardware issue. > > Maybe you're using a cable that doesn't pass high speed signals > correctly, or that motherboard port has wiring glitches that prevent > highspeed signaling from working there. Maybe one of the other ports > will work better. I disabled OHCI in my .config and recompiled. Now EHCI claims the USB 2.0 hub and everything works perfectly. I have a low-speed mouse, a full-speed USB serial device and a high-speed storage device connected to the hub and they all work. My disk drive was getting 900 KB/sec and now it gets 20 MB/sec. > Or maybe it's just a low quality device; we've certainly seen problems > like those before. Genesys is somewhat infamous for that EHCI fails to claim any/all USB 2.0 devices connected. The hub was just an example... __ Chuck Subliminal URL: www.sluggy.com/daily.php?date=050905 ------------------------------------------------------- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. Download it for free - -and be entered to win a 42" plasma tv or your very own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel ------------------------------------------------------- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. Download it for free - -and be entered to win a 42" plasma tv or your very own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
