Epson ET-2600 works with libusb configuration
Adding usb 0x04b8 0x1122
to /etc/sane.d/epson2.conf works. Is it possible to upstream this, so that adding the line isn't necessary?
$ scanimage --version
scanimage (sane-backends) 1.0.31-198-gbb84652c3; backend version 1.0.31
$ sudo scanimage -L
device `epson2:libusb:001:006' is a Epson PID 1122 flatbed scanner
$ sudo sane-find-scanner -v -v
This is sane-find-scanner from sane-backends 1.0.31-198-gbb84652c3
<device descriptor of 0x04b8/0x1122 at 001:006>
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x04B8
idProduct 0x1122
bcdDevice 1.00
iManufacturer 1 ()
iProduct 2 ()
iSerialNumber 3 ()
bNumConfigurations 1
<configuration 0>
bLength 9
bDescriptorType 2
wTotalLength 78
bNumInterfaces 3
bConfigurationValue 1
iConfiguration 4 ()
bmAttributes 192 (Self-powered)
MaxPower 2 mA
<interface 0>
<altsetting 0>
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255
bInterfaceSubClass 255
bInterfaceProtocol 255
iInterface 5 ()
<endpoint 0>
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 (out 0x01)
bmAttributes 2 (bulk)
wMaxPacketSize 512
bInterval 0 ms
bRefresh 0
bSynchAddress 0
<endpoint 1>
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 (in 0x02)
bmAttributes 2 (bulk)
wMaxPacketSize 512
bInterval 0 ms
bRefresh 0
bSynchAddress 0
<interface 1>
<altsetting 0>
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 7
bInterfaceSubClass 1
bInterfaceProtocol 2
iInterface 6 ()
<endpoint 0>
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 (out 0x04)
bmAttributes 2 (bulk)
wMaxPacketSize 512
bInterval 0 ms
bRefresh 0
bSynchAddress 0
<endpoint 1>
bLength 7
bDescriptorType 5
bEndpointAddress 0x85 (in 0x05)
bmAttributes 2 (bulk)
wMaxPacketSize 512
bInterval 0 ms
bRefresh 0
bSynchAddress 0
<interface 2>
<altsetting 0>
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255
bInterfaceSubClass 170
bInterfaceProtocol 1
iInterface 8 ()
<endpoint 0>
bLength 7
bDescriptorType 5
bEndpointAddress 0x07 (out 0x07)
bmAttributes 2 (bulk)
wMaxPacketSize 512
bInterval 0 ms
bRefresh 0
bSynchAddress 0
<endpoint 1>
bLength 7
bDescriptorType 5
bEndpointAddress 0x88 (in 0x08)
bmAttributes 2 (bulk)
wMaxPacketSize 512
bInterval 0 ms
bRefresh 0
bSynchAddress 0
<trying to find out which USB chip is used>
checking for GT-6801 ...
this is not a GT-6801 (bDeviceClass = 0)
checking for GT-6816 ...
this is not a GT-6816 (bcdUSB = 0x200)
checking for GT-8911 ...
this is not a GT-8911 (check 2, bcdUSB = 0x200)
checking for MA-1017 ...
this is not a MA-1017 (bDeviceClass = 0, bInterfaceClass = 255)
checking for MA-1015 ...
this is not a MA-1015 (bDeviceClass = 0)
checking for MA-1509 ...
this is not a MA-1509 (bDeviceClass = 0)
checking for LM983[1,2,3] ...
this is not a LM983x (bcdUSB = 0x200)
checking for GL646 ...
this is not a GL646 (bDeviceClass = 0, bInterfaceClass = 255)
checking for GL646_HP ...
this is not a GL646_HP (bDeviceClass = 0, bInterfaceClass = 255)
checking for GL660+GL646 ...
this is not a GL660+GL646 (bDeviceClass = 0, bInterfaceClass = 255)
checking for GL84x ...
this is not a GL84x (bDeviceClass = 0, bInterfaceClass = 255)
checking for ICM532B ...
this is not a ICM532B (check 1, bDeviceClass = 0, bInterfaceClass = 255)
checking for PV8630/LM9830 ...
this is not a PV8630/LM9830 (bcdUSB = 0x200)
checking for M011 ...
this is not a M011 (bDeviceClass = 0)
checking for RTS8822 ...
this is not a RTS8822 (bNumEndpoints = 2)
checking for rts8858c ...
this is not a rts8858c (bcdUSB = 0x200)
checking for SQ113 ...
this is not a SQ113 (bNumEndpoints = 2)
checking for HP4500C/4570C/5500C/5550C/5590/7650 chipset ...
this is not a HP4500C/4570C/5500C/5550C/5590/7650 chipset (bDeviceClass = 0)
checking for rts8801/rts8891 ...
this is not a rts8801/rts8891 (bcdUSB = 0x200)
<Couldn't determine the type of the USB chip (result from sane-backends 1.0.31-198-gbb84652c3)>
found USB scanner (vendor=0x04b8, product=0x1122) at libusb:001:006