Alan Stern wrote On 22-10-2009 17:05: > On Thu, 22 Oct 2009, [UTF-8] Ozan Çağlayan wrote: > > >> Here's the outputs from /sys/kernel/debug/usb/ehci: >> >> periodic: >> ---------------- >> size = 1024 >> 1: qh1024-0001/f6ffe280 (h2 ep2 [1/0] q0 p8) >> > > There's something odd about this. I'd like to see this file again, > after the patch below has been applied. > periodic size = 1024 1: qh1024-0001/f6ffe280 (h2 ep2 [1/0] q0 p8) t00000000 registers bus pci, device 0000:00:1d.7 EHCI Host Controller EHCI 1.00, hcd state 0 ownership 00000001 SMI sts/enable 0x80080000 structural params 0x00104208 capability params 0x00016871 status 6008 Periodic Recl FLR command 010000 (park)=0 ithresh=1 period=1024 HALT intrenable 00 uframe 0677 port 1 status 001000 POWER sig=se0 port 2 status 001000 POWER sig=se0 port 3 status 001000 POWER sig=se0 port 4 status 001000 POWER sig=se0 port 5 status 001005 POWER sig=se0 PE CONNECT port 6 status 001005 POWER sig=se0 PE CONNECT port 7 status 001000 POWER sig=se0 port 8 status 001000 POWER sig=se0 irq normal 60 err 0 reclaim 14 (lost 0) complete 60 unlink 1 After putting a udelay() the problem seems to be resolved. I did a rmmod-modprobe-sleep in 50 iterations, and the host controller was still functional along with the web-cam: periodic size = 1024 registers bus pci, device 0000:00:1d.7 EHCI Host Controller EHCI 1.00, hcd state 1 ownership 00000001 SMI sts/enable 0x80080000 structural params 0x00104208 capability params 0x00016871 status 2008 Recl FLR command 010001 (park)=0 ithresh=1 period=1024 RUN intrenable 37 IAA FATAL PCD ERR INT uframe 0908 port 1 status 001000 POWER sig=se0 port 2 status 001000 POWER sig=se0 port 3 status 001000 POWER sig=se0 port 4 status 001000 POWER sig=se0 port 5 status 001005 POWER sig=se0 PE CONNECT port 6 status 001005 POWER sig=se0 PE CONNECT port 7 status 001000 POWER sig=se0 port 8 status 001000 POWER sig=se0 irq normal 2115 err 0 reclaim 300 (lost 0) complete 2110 unlink 8 -- Thanks a lot for all your efforts! -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
