perhaps related to kernel usb suspend settings to save power? What
kernel version is this? Perhaps you can try to disable power
management for this device (use the 'on' setting):

http://www.lesswatts.org/projects/devices-power-management/usb.php

allan

On Wed, Apr 7, 2010 at 6:30 AM, viktor vraniak <tyctor at post.cz> wrote:
>
> hi all
>
> i have device HP LaserJet M1005 MFP, scanning is working with "hpljm1005"
> backend.
> but there is one issue: utility "scanimage" works only every second run
>
> in kernel log i see:
> [40719.182679] usb 1-5: default language 0x0409
> [40719.183156] usb 1-5: udev 12, busnum 1, minor = 11
> [40719.183162] usb 1-5: New USB device found, idVendor=03f0, idProduct=3b17
> [40719.183168] usb 1-5: New USB device strings: Mfr=1, Product=2,
> SerialNumber=3
> [40719.183174] usb 1-5: Product: HP LaserJet M1005
> [40719.183179] usb 1-5: Manufacturer: Hewlett-Packard
> [40719.183183] usb 1-5: SerialNumber: KJ15H0P
> [40719.183328] usb 1-5: uevent
> [40719.183361] usb 1-5: usb_probe_device
> [40719.183368] usb 1-5: configuration #1 chosen from 1 choice
> [40719.183438] usb 1-5: adding 1-5:1.0 (config #1, interface 0)
> [40719.183472] usb 1-5:1.0: uevent
> [40719.183574] usb 1-5: adding 1-5:1.1 (config #1, interface 1)
> [40719.183606] usb 1-5:1.1: uevent
> [40719.183637] usblp 1-5:1.1: usb_probe_interface
> [40719.183643] usblp 1-5:1.1: usb_probe_interface - got id
> [40719.183931] drivers/usb/core/file.c: looking for a minor, starting at 0
> [40719.183990] usblp0: USB Bidirectional printer dev 12 if 1 alt 0 proto 2 vid
> 0x03F0 pid 0x3B17
> [40719.184014] drivers/usb/core/inode.c: creating file '012'
> [40719.192140] usb 1-5: uevent
> [40719.192140] usb 1-5: uevent
> [40873.431475] usb usb4: usb auto-resume
> [40873.431485] usb usb4: wakeup_rh
> [40873.463014] hub 4-0:1.0: hub_resume
> [40873.463048] hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0000
> [40873.463168] usb usb2: usb auto-resume
> [40873.463172] usb usb2: wakeup_rh
> [40873.495011] hub 2-0:1.0: hub_resume
> [40873.495034] hub 2-0:1.0: state 7 ports 2 chg 0000 evt 0000
> [40873.495117] usb usb5: usb auto-resume
> [40873.495120] usb usb5: wakeup_rh
> [40873.527011] hub 5-0:1.0: hub_resume
> [40873.527034] hub 5-0:1.0: state 7 ports 2 chg 0000 evt 0000
> [40873.527492] usb 1-5: usbfs: interface 1 claimed by usblp while 'scanimage'
> sets config #1
> [40874.500020] usb usb4: suspend_rh (auto-stop)
> [40874.500040] usb usb2: suspend_rh (auto-stop)
> [40874.750017] usb usb5: suspend_rh (auto-stop)
> [40876.000085] hub 4-0:1.0: hub_suspend
> [40876.000098] usb usb4: bus auto-suspend
> [40876.000102] usb usb4: suspend_rh
> [40876.000118] hub 2-0:1.0: hub_suspend
> [40876.000122] usb usb2: bus auto-suspend
> [40876.000125] usb usb2: suspend_rh
> [40876.000139] hub 5-0:1.0: hub_suspend
> [40876.000143] usb usb5: bus auto-suspend
> [40876.000146] usb usb5: suspend_rh
>
>
> now i run scanimage, and scan one page, it runs OK.
> so i run scanimage for second page and i see this in dmesg output:
>
>
> [40940.901975] usb usb4: usb auto-resume
> [40940.901985] usb usb4: wakeup_rh
> [40940.933014] hub 4-0:1.0: hub_resume
> [40940.933048] hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0000
> [40940.933164] usb usb2: usb auto-resume
> [40940.933169] usb usb2: wakeup_rh
> [40940.965036] hub 2-0:1.0: hub_resume
> [40940.965059] hub 2-0:1.0: state 7 ports 2 chg 0000 evt 0000
> [40940.965144] usb usb5: usb auto-resume
> [40940.965147] usb usb5: wakeup_rh
> [40940.997011] hub 5-0:1.0: hub_resume
> [40940.997034] hub 5-0:1.0: state 7 ports 2 chg 0000 evt 0000
> [40940.997495] usb 1-5: usbfs: interface 1 claimed by usblp while 'scanimage'
> sets config #1
> [40942.000048] usb usb4: suspend_rh (auto-stop)
> [40942.000069] usb usb2: suspend_rh (auto-stop)
> [40942.000087] usb usb5: suspend_rh (auto-stop)
> [40943.000024] hub 4-0:1.0: hub_suspend
> [40943.000035] usb usb4: bus auto-suspend
> [40943.000038] usb usb4: suspend_rh
> [40943.000053] hub 2-0:1.0: hub_suspend
> [40943.000058] usb usb2: bus auto-suspend
> [40943.000061] usb usb2: suspend_rh
> [40943.000074] hub 5-0:1.0: hub_suspend
> [40943.000078] usb usb5: bus auto-suspend
> [40943.000081] usb usb5: suspend_rh
> [40950.191847] ehci_hcd 0000:00:10.4: detected XactErr len 0/32 retry 1
> [40950.191878] hub 1-0:1.0: state 7 ports 8 chg 0000 evt 0020
> [40950.191891] ehci_hcd 0000:00:10.4: GetStatus port 5 status 001002 POWER
> sig=se0 CSC
> [40950.191901] hub 1-0:1.0: port 5, status 0100, change 0001, 12 Mb/s
> [40950.191906] usb 1-5: USB disconnect, address 12
> [40950.191909] usb 1-5: unregistering device
> [40950.191913] usb 1-5: usb_disable_device nuking all URBs
> [40950.191924] ehci_hcd 0000:00:10.4: shutdown urb f4231500 ep1in-bulk
> [40950.191972] usb 1-5: unregistering interface 1-5:1.0
> [40950.192140] usb 1-5:1.0: uevent
> [40950.192182] usb 1-5: unregistering interface 1-5:1.1
> [40950.192285] drivers/usb/core/file.c: removing 0 minor
> [40950.192393] usblp0: removed
> [40950.192406] usb 1-5:1.1: uevent
> [40950.192629] usb 1-5: uevent
> [40950.297020] hub 1-0:1.0: debounce: port 5: total 100ms stable 100ms status
> 0x100
> [40951.343744] hub 1-0:1.0: state 7 ports 8 chg 0000 evt 0020
> [40951.343762] ehci_hcd 0000:00:10.4: GetStatus port 5 status 001803 POWER 
> sig=j
> CSC CONNECT
> [40951.343776] hub 1-0:1.0: port 5, status 0501, change 0001, 480 Mb/s
> [40951.447659] hub 1-0:1.0: debounce: port 5: total 100ms stable 100ms status
> 0x501
> [40951.499311] ehci_hcd 0000:00:10.4: port 5 high speed
> [40951.499322] ehci_hcd 0000:00:10.4: GetStatus port 5 status 001005 POWER
> sig=se0 PE CONNECT
> [40951.551020] usb 1-5: new high speed USB device using ehci_hcd and address 
> 13
> [40951.602326] ehci_hcd 0000:00:10.4: port 5 high speed
> [40951.602336] ehci_hcd 0000:00:10.4: GetStatus port 5 status 001005 POWER
> sig=se0 PE CONNECT
> [40951.666726] usb 1-5: default language 0x0409
> [40951.667162] usb 1-5: udev 13, busnum 1, minor = 12
> [40951.667168] usb 1-5: New USB device found, idVendor=03f0, idProduct=3b17
> [40951.667174] usb 1-5: New USB device strings: Mfr=1, Product=2,
> SerialNumber=3
> [40951.667180] usb 1-5: Product: HP LaserJet M1005
> [40951.667185] usb 1-5: Manufacturer: Hewlett-Packard
> [40951.667190] usb 1-5: SerialNumber: KJ15H0P
> [40951.667335] usb 1-5: uevent
> [40951.667370] usb 1-5: usb_probe_device
> [40951.667376] usb 1-5: configuration #1 chosen from 1 choice
> [40951.667996] usb 1-5: adding 1-5:1.0 (config #1, interface 0)
> [40951.668052] usb 1-5:1.0: uevent
> [40951.668160] usb 1-5: adding 1-5:1.1 (config #1, interface 1)
> [40951.668194] usb 1-5:1.1: uevent
> [40951.668225] usblp 1-5:1.1: usb_probe_interface
> [40951.668230] usblp 1-5:1.1: usb_probe_interface - got id
> [40951.669741] drivers/usb/core/file.c: looking for a minor, starting at 0
> [40951.669817] usblp0: USB Bidirectional printer dev 13 if 1 alt 0 proto 2 vid
> 0x03F0 pid 0x3B17
> [40951.669829] drivers/usb/core/inode.c: creating file '013'
> [40951.672530] usb 1-5: uevent
>
>
> scanimage only waiting, not scanning, so i hit Ctrl+C twice to stop scanimage.
> i see this in dmesg output:
>
> [41177.909824] usb usb4: usb auto-resume
> [41177.909833] usb usb4: wakeup_rh
> [41177.941015] hub 4-0:1.0: hub_resume
> [41177.941049] hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0000
> [41177.941165] usb usb2: usb auto-resume
> [41177.941169] usb usb2: wakeup_rh
> [41177.973013] hub 2-0:1.0: hub_resume
> [41177.973037] hub 2-0:1.0: state 7 ports 2 chg 0000 evt 0000
> [41177.973124] usb usb5: usb auto-resume
> [41177.973127] usb usb5: wakeup_rh
> [41178.005013] hub 5-0:1.0: hub_resume
> [41178.005040] hub 5-0:1.0: state 7 ports 2 chg 0000 evt 0000
> [41178.005511] usb 1-5: usbfs: interface 1 claimed by usblp while 'scanimage'
> sets config #1
> [41179.000021] usb usb4: suspend_rh (auto-stop)
> [41179.000043] usb usb2: suspend_rh (auto-stop)
> [41179.000060] usb usb5: suspend_rh (auto-stop)
> [41180.000045] hub 4-0:1.0: hub_suspend
> [41180.000062] usb usb4: bus auto-suspend
> [41180.000066] usb usb4: suspend_rh
> [41180.000084] hub 2-0:1.0: hub_suspend
> [41180.000088] usb usb2: bus auto-suspend
> [41180.000091] usb usb2: suspend_rh
> [41181.001035] hub 5-0:1.0: hub_suspend
> [41181.001052] usb usb5: bus auto-suspend
> [41181.001058] usb usb5: suspend_rh
>
>
> when i run scanimage now, it scan one page again, and after next run situation
> repeats.
> it looks like scanimage reset USB bus,
> and lost connection to old device, and not connect to newly created device.
>
> in udev i have hardcoded device name, so
> scanimage -L reports still same device, so device name is not problem
> hpljm1005:libusb:001:scanner0
>
> where can be problem?
> is it clear what i am trying to describe?
> do you need any other info from me?
>
> regards
>
> viktor
>
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