[sane-devel] Timeout problems with HP ScanJet 4100C

[Noel Llopis]

Hello,

I have recently bought a scanner HP ScanJet 4100C USB specifically because I 
saw it as one of the ones that had complete support in the SANE web site: 
http://www.sane-project.org/sane-supported-devices.html

I'm running Mandrake 9.2 with the 2.4.22 kernel.

I plugged it in and it was automatically mounted on dev/usb/scanner0. I was 
able to use it with Kooka and with The Gimp plugin directly. So I was very 
pleased.

However, there's something weird going on. If I leave the scanner plugged in 
and I reboot my computer, it will sit for about one minute at the "Checking 
for new hardware" step and eventually continue. When I check dmesg I see all 
these warnings:

usb.c: registered new driver usbscanner
scanner.c: USB scanner device (0x03f0/0x0101) now attached to scanner0
scanner.c: 0.4.14:USB Scanner Driver
[...snip...]
usb_control/bulk_msg: timeout
usb_control/bulk_msg: timeout
usb_control/bulk_msg: timeout
usb_control/bulk_msg: timeout
usb_control/bulk_msg: timeout
usb_control/bulk_msg: timeout
usb_control/bulk_msg: timeout
usb_control/bulk_msg: timeout
usb-uhci.c: interrupt, status 2, frame# 1962
usb_control/bulk_msg: timeout
usbdevfs: USBDEVFS_CONTROL failed dev 2 rqt 128 rq 6 len 100 ret -110
usb_control/bulk_msg: timeout
usbdevfs: USBDEVFS_CONTROL failed dev 2 rqt 128 rq 6 len 100 ret -110
usb-uhci.c: interrupt, status 2, frame# 2039
usb_control/bulk_msg: timeout
usbdevfs: USBDEVFS_CONTROL failed dev 6 rqt 128 rq 6 len 100 ret -110
usb_control/bulk_msg: timeout
usbdevfs: USBDEVFS_CONTROL failed dev 2 rqt 128 rq 6 len 100 ret -110
usb_control/bulk_msg: timeout
usbdevfs: USBDEVFS_CONTROL failed dev 2 rqt 128 rq 6 len 100 ret -110
usb_control/bulk_msg: timeout


The problem isn't just that. If I type cat /proc/bus/usb/devices, I will get a 
similar pause, and the same thing will happen when I try to run the Mandrake 
Control Center or HardDrake.

Incidentally, here's the output of my usb/devices with only the scanner 
plugged in: 

T: Bus=05 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 8
B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS= 8 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 2.04
S: Manufacturer=Linux 2.4.22-21mdksmpcustom ehci_hcd
S: Product=Intel Corp. 82801EB USB2
S: SerialNumber=00:1d.7
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=256ms
T: Bus=04 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 11/900 us ( 1%), #Int= 1, #Iso= 0
D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 0.00
S: Product=USB UHCI Root Hub
S: SerialNumber=ff20
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms
T: Bus=04 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 5 Spd=12 MxCh= 0
D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=03f0 ProdID=0101 Rev= 1.00
S: SerialNumber=00MY8B5534VD
C:* #Ifs= 1 Cfg#= 1 Atr=60 MxPwr= 0mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=00(>ifc ) Sub=00 Prot=00 Driver=usbscanner
E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 16 Ivl=0ms
E: Ad=83(I) Atr=03(Int.) MxPS= 1 Ivl=250ms
T: Bus=03 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 0.00
S: Product=USB UHCI Root Hub
S: SerialNumber=ff40
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms
T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 0.00
S: Product=USB UHCI Root Hub
S: SerialNumber=ff60
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 0.00
S: Product=USB UHCI Root Hub
S: SerialNumber=ff80
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms


And sane-find-scanner reports the following:

found USB scanner (vendor=0x03f0, product=0x0101) at /dev/usb/scanner0
found USB scanner (vendor=0x03f0, product=0x0101) at libusb:004:006


Any idea what is going on? Everything seems to work fine except for those 
delays. Is there anything I can check or change to try to diagnose the 
problem a bit better? I'm willing to try anything.

Thanks in advance.


--Noel