Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive
From: Rogério Brito (rbrito_at_ime.usp.br)
Date: 11/14/03
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Date: Thu, 13 Nov 2003 21:50:58 -0200 To: Alan Stern <stern@rowland.harvard.edu>
On Nov 13 2003, Rogério Brito wrote:
> For the time being, I put new files at http://www.ime.usp.br/~rbrito/usb
> for the situation without any USB devices plugged after a warm boot. I
> hope that they're more helpful than the files I posted before.
Well, I just tried plugging the drive into one of the ports that come
right from the motherboard and the diff relative to what I saw earlier
is the following:
--- /root/dmesg-no-devices-plugged.txt 2003-11-13 20:58:06.000000000 -0200
+++ dmesg-drive-plugged-unplugged-plugged.txt 2003-11-13 21:41:37.000000000 -0200
@@ -228,3 +228,30 @@
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
drivers/usb/host/uhci-hcd.c: d400: suspend_hc
+drivers/usb/host/uhci-hcd.c: d400: wakeup_hc
+hub 1-0:1.0: port 1, status 101, change 1, 12 Mb/s
+hub 1-0:1.0: debounce: port 1: delay 100ms stable 4 status 0x101
+hub 1-0:1.0: new USB device on port 1, assigned address 2
+usb 1-1: new device strings: Mfr=1, Product=3, SerialNumber=0
+drivers/usb/core/message.c: USB device number 2 default language ID 0x409
+usb 1-1: Product: USB Embedded Hub
+usb 1-1: Manufacturer: Leading Driver Co.,LTD.
+drivers/usb/core/usb.c: usb_hotplug
+usb 1-1: registering 1-1:1.0 (config #1, interface 0)
+drivers/usb/core/usb.c: usb_hotplug
+hub 1-1:1.0: usb_probe_interface
+hub 1-1:1.0: usb_probe_interface - got id
+hub 1-1:1.0: USB hub found
+hub 1-1:1.0: 2 ports detected
+hub 1-1:1.0: compound device; port removable status: FF
+hub 1-1:1.0: individual port power switching
+hub 1-1:1.0: individual port over-current protection
+hub 1-1:1.0: Port indicators are not supported
+hub 1-1:1.0: power on to power good time: 100ms
+hub 1-1:1.0: hub controller current requirement: 100mA
+hub 1-1:1.0: local power source is lost (inactive)
+hub 1-1:1.0: no over-current condition exists
+hub 1-1:1.0: enabling power on all ports
+hub 1-1:1.0: port 1, status 101, change 1, 12 Mb/s
+hub 1-1:1.0: transfer --> -75
+usb 1-1: control timeout on ep0in
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
So, it seems that my drive indeed has an embedded hub in it. After the
lines above, my khubd thread enters the D state.
If I try to issue a "cat /proc/bus/usb/devices" command, it hangs. BTW,
I just received another line saying control timeout on ep0in. :-(
Is there anything else that I can do?
Thank you very much for your attention, Rogério Brito.
-- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Rogério Brito - rbrito@ime.usp.br - http://www.ime.usp.br/~rbrito =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
- Previous message: Andrea Arcangeli: "Re: OT: why no file copy() libc/syscall ??"
- In reply to: Rogério Brito: "Re: [linux-usb-devel] [BUG] Still having problems with an USB Drive"
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