[sane-devel] Epson 636u, libusb, kernel 2.6.3 I/O problem
S Miller
sajmmiller@yahoo.com
Fri, 20 Feb 2004 14:01:37 -0800 (PST)
Hello,
Epson 636U scanner fails with I/O error messages when configured using
libusb, 2.6.3, sane backends (libsane) 1.0.13, and hotplug. System is
Debian testing/unstable. This scanner has worked perfectly for over two
years using the scanner.o driver. With 2.6.3 I was forced to
reconfigure using libusb, since scanner.o is removed from the kernel
configuration. I've read all the docs I can find, and feel reasonably
sure that my configuration correct. The scanner is being found by
sane-find-scanner and by scanimage -L (1st try only). Once a frontend
(scanimage or xsane) has tried to access the scanner once, it hangs,
and will not find the scanner again. Even though the scanner is found
by scanimage or xsane on the first try, it won't operate at all. I've
commented out all unused scanner lines in /etc/sane.d/dll.conf and
verified that permissions are being set correctly. The problem occurs
both as root and as a user member of the scanner group. Hopefully the
output below (long) will give some clues as to what's happening. I
would appreciate any suggestions, including where to file a bug report
if appropriate.
TIA
Scott Miller
sane-find-scanner
# No SCSI scanners found. If you expected something different, make
sure that
# you have loaded a SCSI driver for your SCSI adapter.
found USB scanner (vendor=0x04b8 [EPSON], product=0x0101
[Perfection636]) at libusb:001:002
# Your USB scanner was (probably) detected. It may or may not be
supported by
# SANE. Try scanimage -L and read the backend's manpage.
# Scanners connected to the parallel port or other proprietary ports
can't be
# detected by this program.
# You may want to run this program as root to find all devices. Once
you
# found the scanner devices, be sure to adjust access permissions as
# necessary.
scanimage -L (1st time after boot or after power cycling scanner)
device `epson:libusb:001:002' is a Epson Perfection636 flatbed scanner
(response time is almost immediate)
scanimage -L (2nd time)
device `epson:libusb:001:002' is a Epson Perfection636 flatbed scanner
(response time is very slow -- 30 seconds)
scanimage -L (3rd time)
No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).
(response time again is very slow)
dmesg (after scanimage -L fails)
usb 1-1: bulk timeout on ep1in
usbfs: USBDEVFS_BULK failed dev 2 ep 0x81 len 1 ret -110
ls -l /proc/bus/usb/001
total 0
-rw-r--r-- 1 root root 43 Feb 20 12:23 001
-rw-rw---- 1 root scanner 50 Feb 20 12:26 002
-rw-r--r-- 1 root root 43 Feb 20 12:23 003
-rw-r--r-- 1 root root 50 Feb 20 12:23 004
lsusb -v
Bus 002 Device 001: ID 0000:0000
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0000
idProduct 0x0000
bcdDevice 2.06
iManufacturer 3
iProduct 2
iSerial 1
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x40
Self Powered
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0002 bytes 2 twice
bInterval 255
Bus 001 Device 004: ID 0781:0002 SanDisk Corp. SDDR-31 ImageMate II
CompactFlash Reader
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x0781 SanDisk Corp.
idProduct 0x0002 SDDR-31 ImageMate II CompactFlash Reader
bcdDevice 0.09
iManufacturer 1
iProduct 3
iSerial 2
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x40
Self Powered
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk (Zip)
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 bytes 64 once
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 bytes 64 once
bInterval 0
Bus 001 Device 003: ID 050f:0003 KC Technology, Inc. KC82C160S Hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x050f KC Technology, Inc.
idProduct 0x0003 KC82C160S Hub
bcdDevice 1.00
iManufacturer 0
iProduct 0
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0001 bytes 1 once
bInterval 255
Bus 001 Device 002: ID 04b8:0101 Seiko Epson Corp. Perfection 636
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 255 Vendor Specific Subclass
bDeviceProtocol 255 Vendor Specific Protocol
bMaxPacketSize0 64
idVendor 0x04b8 Seiko Epson Corp.
idProduct 0x0101 Perfection 636
bcdDevice 1.04
iManufacturer 1 EPSON
iProduct 2 Perfection636
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x40
Self Powered
MaxPower 2mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 bytes 64 once
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 bytes 64 once
bInterval 0
Bus 001 Device 001: ID 0000:0000
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0000
idProduct 0x0000
bcdDevice 2.06
iManufacturer 3
iProduct 2
iSerial 1
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x40
Self Powered
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0002 bytes 2 twice
bInterval 255
SANE_DEBUG_EPSON=255 scanimage >image.pnm 2>log
[sanei_debug] Setting debug level of epson to 255.
[epson] sane_init: sane-backends 1.0.13
[epson] sane_init, ># epson.conf<
[epson] sane_init, >#<
[epson] sane_init, ># here are some examples for how to configure the
EPSON backend<
[epson] sane_init, >#<
[epson] sane_init, ># SCSI scanner:<
[epson] sane_init, ># scsi EPSON<
[epson] sane_init, >#<
[epson] sane_init, ># Parallel port scanner:<
[epson] sane_init, >#pio 0x278<
[epson] sane_init, >#pio 0x378<
[epson] sane_init, >#pio 0x3BC<
[epson] sane_init, >#<
[epson] sane_init, ># USB scanner - only enable this if you have an
EPSON scanner. It could<
[epson] sane_init, ># otherwise block your non-EPSON
scanner from being<
[epson] sane_init, ># recognized.<
[epson] sane_init, >#usb /dev/usb/scanner0<
[epson] sane_init, >usb<
[epson] attach_one_usb()
[epson] SANE Epson Backend v0.2.40 - 2003-10-27
[epson] attach(, 3)
[epson] attach: opening
[epson] attach_one_usb(libusb:001:002)
[epson] SANE Epson Backend v0.2.40 - 2003-10-27
[epson] attach(libusb:001:002, 3)
[epson] attach: opening libusb:001:002
[epson] Found valid EPSON scanner: 0x4b8/0x101 (vendorID/productID)
[epson] reset()
[epson] send buf, size = 2
[epson] buf[0] 1b .
[epson] buf[1] 40 @
[epson] receive buf, expected = 1, got = 1
[epson] buf[0] 06 .
[epson] get_identity_information()
[epson] send buf, size = 2
[epson] buf[0] 1b .
[epson] buf[1] 49 I
[epson] receive buf, expected = 4, got = 4
[epson] buf[0] 02 .
[epson] buf[1] 00 .
[epson] buf[2] 61 a
[epson] buf[3] 00 .
[epson] code 02
[epson] status 00
[epson] count 97
[epson] receive buf, expected = 97, got = 97
[epson] buf[0] 42 B
[epson] buf[1] 37 7
[epson] buf[2] 52 R
[epson] buf[3] 32 2
[epson] buf[4] 00 .
[epson] buf[5] 52 R
[epson] buf[6] 3c <
[epson] buf[7] 00 .
[epson] buf[8] 52 R
[epson] buf[9] 48 H
[epson] buf[10] 00 .
[epson] buf[11] 52 R
[epson] buf[12] 4b K
[epson] buf[13] 00 .
[epson] buf[14] 52 R
[epson] buf[15] 50 P
[epson] buf[16] 00 .
[epson] buf[17] 52 R
[epson] buf[18] 5a Z
[epson] buf[19] 00 .
[epson] buf[20] 52 R
[epson] buf[21] 64 d
[epson] buf[22] 00 .
[epson] buf[23] 52 R
[epson] buf[24] 78 x
[epson] buf[25] 00 .
[epson] buf[26] 52 R
[epson] buf[27] 85 .
[epson] buf[28] 00 .
[epson] buf[29] 52 R
[epson] buf[30] 90 .
[epson] buf[31] 00 .
[epson] buf[32] 52 R
[epson] buf[33] 96 .
[epson] buf[34] 00 .
[epson] buf[35] 52 R
[epson] buf[36] a0 .
[epson] buf[37] 00 .
[epson] buf[38] 52 R
[epson] buf[39] af .
[epson] buf[40] 00 .
[epson] buf[41] 52 R
[epson] buf[42] b4 .
[epson] buf[43] 00 .
[epson] buf[44] 52 R
[epson] buf[45] c8 .
[epson] buf[46] 00 .
[epson] buf[47] 52 R
[epson] buf[48] d8 .
[epson] buf[49] 00 .
[epson] buf[50] 52 R
[epson] buf[51] f0 .
[epson] buf[52] 00 .
[epson] buf[53] 52 R
[epson] buf[54] 2c ,
[epson] buf[55] 01 .
[epson] buf[56] 52 R
[epson] buf[57] 40 @
[epson] buf[58] 01 .
[epson] buf[59] 52 R
[epson] buf[60] 68 h
[epson] buf[61] 01 .
[epson] buf[62] 52 R
[epson] buf[63] 90 .
[epson] buf[64] 01 .
[epson] buf[65] 52 R
[epson] buf[66] e0 .
[epson] buf[67] 01 .
[epson] buf[68] 52 R
[epson] buf[69] 58 X
[epson] buf[70] 02 .
[epson] buf[71] 52 R
[epson] buf[72] d0 .
[epson] buf[73] 02 .
[epson] buf[74] 52 R
[epson] buf[75] 20
[epson] buf[76] 03 .
[epson] buf[77] 52 R
[epson] buf[78] 84 .
[epson] buf[79] 03 .
[epson] buf[80] 52 R
[epson] buf[81] b0 .
[epson] buf[82] 04 .
[epson] buf[83] 52 R
[epson] buf[84] 40 @
[epson] buf[85] 06 .
[epson] buf[86] 52 R
[epson] buf[87] 08 .
[epson] buf[88] 07 .
[epson] buf[89] 52 R
[epson] buf[90] 60 `
[epson] buf[91] 09 .
[epson] buf[92] 41 A
[epson] buf[93] b0 .
[epson] buf[94] 4f O
[epson] buf[95] b0 .
[epson] buf[96] 6d m
[epson] type B 0x42
[epson] level 7 0x37
[epson] no option equipment installed
[epson] resolution (dpi): 50
[epson] resolution (dpi): 60
[epson] resolution (dpi): 72
[epson] resolution (dpi): 75
[epson] resolution (dpi): 80
[epson] resolution (dpi): 90
[epson] resolution (dpi): 100
[epson] resolution (dpi): 120
[epson] resolution (dpi): 133
[epson] resolution (dpi): 144
[epson] resolution (dpi): 150
[epson] resolution (dpi): 160
[epson] resolution (dpi): 175
[epson] resolution (dpi): 180
[epson] resolution (dpi): 200
[epson] resolution (dpi): 216
[epson] resolution (dpi): 240
[epson] resolution (dpi): 300
[epson] resolution (dpi): 320
[epson] resolution (dpi): 360
[epson] resolution (dpi): 400
[epson] resolution (dpi): 480
[epson] resolution (dpi): 600
[epson] resolution (dpi): 720
[epson] resolution (dpi): 800
[epson] resolution (dpi): 900
[epson] resolution (dpi): 1200
[epson] resolution (dpi): 1600
[epson] resolution (dpi): 1800
[epson] resolution (dpi): 2400
[epson] maximum scan area: x 20400 y 28080
[epson] fbf tlx 0.000000 tly 0.000000 brx 215.899994 bry 297.179993
[mm]
[epson] send buf, size = 2
[epson] buf[0] 1b .
[epson] buf[1] 44 D
[epson] receive buf, expected = 1, got = 1
[epson] buf[0] 06 .
[epson] send buf, size = 1
[epson] buf[0] 10 .
[epson] receive buf, expected = 1, got = 1
[epson] buf[0] 15 .
[epson] send buf, size = 2
[epson] buf[0] 1b .
[epson] buf[1] 44 D
[epson] receive buf, expected = 1, got = 1
[epson] buf[0] 06 .
[epson] send buf, size = 1
[epson] buf[0] 0e .
[epson] receive buf, expected = 1, got = 1
[epson] buf[0] 15 .
[epson] send buf, size = 2
[epson] buf[0] 1b .
[epson] buf[1] 44 D
[epson] receive buf, expected = 1, got = 1
[epson] buf[0] 06 .
[epson] send buf, size = 1
[epson] buf[0] 0c .
[epson] receive buf, expected = 1, got = 1
[epson] buf[0] 15 .
[epson] Max. supported color depth = 8
[epson] request_focus_position()
[epson] Disabling 'Set Focus' support
[epson] send buf, size = 2
[epson] buf[0] 1b .
[epson] buf[1] 66 f
[epson] receive buf, expected = 4, got = 4
[epson] buf[0] 02 .
[epson] buf[1] 00 .
[epson] buf[2] 2a *
[epson] buf[3] 00 .
[epson] code 02
[epson] status 00
[epson] count 42
[epson] receive buf, expected = 42, got = 42
[epson] buf[0] 01 .
[epson] buf[1] 00 .
[epson] buf[2] 00 .
[epson] buf[3] 00 .
[epson] buf[4] 00 .
[epson] buf[5] 00 .
[epson] buf[6] 00 .
[epson] buf[7] 00 .
[epson] buf[8] 00 .
[epson] buf[9] 00 .
[epson] buf[10] 00 .
[epson] buf[11] 00 .
[epson] buf[12] 00 .
[epson] buf[13] 00 .
[epson] buf[14] 00 .
[epson] buf[15] 00 .
[epson] buf[16] 00 .
[epson] buf[17] 00 .
[epson] buf[18] 00 .
[epson] buf[19] 00 .
[epson] buf[20] 00 .
[epson] buf[21] 00 .
[epson] buf[22] 00 .
[epson] buf[23] 00 .
[epson] buf[24] 00 .
[epson] buf[25] 00 .
[epson] buf[26] 50 P
[epson] buf[27] 65 e
[epson] buf[28] 72 r
[epson] buf[29] 66 f
[epson] buf[30] 65 e
[epson] buf[31] 63 c
[epson] buf[32] 74 t
[epson] buf[33] 69 i
[epson] buf[34] 6f o
[epson] buf[35] 6e n
[epson] buf[36] 36 6
[epson] buf[37] 33 3
[epson] buf[38] 36 6
[epson] buf[39] 20
[epson] buf[40] 20
[epson] buf[41] 20
[epson] scanner model: Perfection636
[epson] close_scanner(fd = 0)
[epson] sane_get_devices()
[epson] sane_open(libusb:001:002)
[epson] init_options()
[epson] open_scanner()
[epson] setvalue(option = 38, value = 0xbfffe938
[epson] set = 215.899994
[epson] setvalue(option = 39, value = 0xbfffe938
[epson] set = 297.179993
[epson] sane_start()
[epson] open_scanner()
[epson] scanner is already open: fd = 0
[epson] sane_start: Setting data format to 1 bits
[epson] send buf, size = 2
[epson] buf[0] 1b .
[epson] buf[1] 44 D
[epson] receive buf, expected = 1, got = 0
[epson] sane_start: set_data_format failed: Error during device I/O
scanimage: sane_start: Error during device I/O
[epson] close_scanner(fd = 0)
lsmod
Module Size Used by
sd_mod 11552 0
usb_storage 25856 0
ohci_hcd 16644 0
usbcore 89692 4 usb_storage,ohci_hcd
sg 29344 0
snd_pcm_oss 48036 0
snd_mixer_oss 17280 1 snd_pcm_oss
nvidia 2068104 12
scsi_mod 63020 3 sd_mod,usb_storage,sg
snd_cmipci 31508 0
snd_pcm 84132 2 snd_pcm_oss,snd_cmipci
snd_page_alloc 9348 1 snd_pcm
snd_opl3_lib 9216 1 snd_cmipci
snd_timer 21380 2 snd_pcm,snd_opl3_lib
snd_hwdep 7328 1 snd_opl3_lib
snd_mpu401_uart 6272 1 snd_cmipci
snd_rawmidi 19744 1 snd_mpu401_uart
snd 44644 9
snd_pcm_oss,snd_mixer_oss,snd_cmipci,snd_pcm,snd_opl3_lib,snd_timer,snd_hwdep,snd_mpu401_uart,snd_rawmidi
rtc 10552 0
lspci
00:00.0 Host bridge: Silicon Integrated Systems [SiS] SiS645DX Host &
Memory & AGP Controller
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SiS 530 Virtual
PCI-to-PCI bridge (AGP)
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS961 [MuTIOL
Media IO] (rev 10)
00:02.1 SMBus: Silicon Integrated Systems [SiS]: Unknown device 0016
00:02.2 USB Controller: Silicon Integrated Systems [SiS] USB 1.0
Controller (rev 07)
00:02.3 USB Controller: Silicon Integrated Systems [SiS] USB 1.0
Controller (rev 07)
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev
d0)
00:03.0 Ethernet controller: Silicon Integrated Systems [SiS] SiS900
10/100 Ethernet (rev 90)
00:05.0 Multimedia audio controller: C-Media Electronics Inc CM8738
(rev 10)
01:00.0 VGA compatible controller: nVidia Corporation NV20 [GeForce3]
(rev a3)
dpkg -l "*sane*"
||/ Name Version Description
+++-==============-==============-============================================
ii libsane 1.0.13-3 API library for scanners
pn libsane-dev <none> (no description available)
ii libsane-extras 1.0.13.1 API library for scanners -- extra
backends
pn python-imaging <none> (no description available)
pn python1.5-imag <none> (no description available)
pn python2.1-imag <none> (no description available)
ii python2.2-imag 1.1.4-3 Python Imaging Library SANE interface
ii sane 1.0.11-3 Scanner graphical frontends
un sane-gimp1.1 <none> (no description available)
un sane-gimp1.2 <none> (no description available)
ii sane-utils 1.0.13-3 API library for scanners -- utilities
ii xsane 0.92-2 A gtk-based X11 frontend for SANE
(Scanner A
un xsane-common <none> (no description available)
un xsane-gimp1.2 <none> (no description available)
dpkg -l "*libusb*"
||/ Name Version Description
+++-==============-==============-============================================
ii libusb-0.1-4 0.1.8-2 Userspace USB programming library
ii libusb-dev 0.1.8-2 Userspace USB programming library
developmen
pn libusb0 <none> (no description available)
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