On Thu, 5 Oct 2006, Greg KH wrote: > > (I need to buy a high-speed hub so I can run these sorts of tests here...) > > They're real cheap now, I can send you one if you can't find one > nearby...
I picked one up this morning. Haven't had a chance to try it out yet... > Ok, here's the log to answer the first and last of those questions. > Same thing happens, I plug the device into the usb hub: > > > [ 304.401339] ehci_hcd 0000:00:1d.7: port 4 remote wakeup > [ 304.401352] hub 1-0:1.0: state 8 ports 8 chg 0000 evt 0000 > [ 304.401359] usb usb1: usb auto-resume > [ 304.401365] usb usb1: finish resume > [ 304.401383] hub 1-0:1.0: hub_resume > [ 304.401391] ehci_hcd 0000:00:1d.7: resume root hub > [ 304.431673] hub 1-0:1.0: state 7 ports 8 chg 0000 evt 0000 > [ 304.680955] GREGKH: ehci_hub_status_data: hcd->state=0x1 > [ 304.680961] GREGKH: ehci_hub_status_data: temp & PORT_RESUME=0 > [ 304.680964] GREGKH: ehci_hub_status_data: temp & PORT_RESUME=0 > [ 304.680969] GREGKH: ehci_hub_status_data: temp & PORT_RESUME=0 > [ 304.680972] GREGKH: ehci_hub_status_data: temp & PORT_RESUME=0 > [ 304.680976] GREGKH: ehci_hub_status_data: temp & PORT_RESUME=0 > [ 304.680979] GREGKH: ehci_hub_status_data: temp & PORT_RESUME=0 > > I should have numbered the ports that the temp variable got checked for, > sorry. No problem. Since they all say the same thing, it doesn't matter which is which! :-) > The initial "hcd->state" line is printed out every time that function > gets called. The check is printed out every time it is about to be > tested. The patch that adds these lines is below. > > Does this help out any? Should I still check the jiffies value? The timestamp is in the log, so we don't need the actual jiffies value. This actually does help. Clearly (temp & PORT_RESUME) is getting cleared somewhere. Perhaps by ehci_bus_resume(). Let me take a closer look at this and experiment with the new hub. I'll get back to you in a few days. Alan Stern ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
