Canon CanoScan 4200F
USB
0x04a9
0x221b
Here are the numbers of the four major chips on the board. chip 1 ESMT M12L16161A- 7T LNS1P43ZE 0503 This is the DRAM module used inside this scanner chip 2 610800017919 D1 0521 TH07 XHHL7G0000GG This is a remarked ALI M5623D scanner controller. There is a product brief describing its features. chip 3 WM WM8196SCDS 55AMPBX This scanner uses a Wolfson Electronics WM8196SCDS chip as ADC. There is also a datasheet available: chip 4 ST E L6219DS 9913M V6 MYS 99 507 This is the controller of the scanner motor
T: Bus=01 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#= 3 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=ff(vend.) Sub=ff Prot=ff MxPS=64 #Cfgs= 1 P: Vendor=04a9 ProdID=221b Rev= 2.00 S: Manufacturer=Canon S: Product=CanoScan C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 10mA I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none) E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=83(I) Atr=03(Int.) MxPS= 1 Ivl=16ms <device descriptor of 0x04a9/0x221b at 001:003 (Canon CanoScan)> bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 255 bDeviceSubClass 255 bDeviceProtocol 255 bMaxPacketSize0 64 idVendor 0x04A9 idProduct 0x221B bcdDevice 2.00 iManufacturer 3 (Canon) iProduct 4 (CanoScan) iSerialNumber 0 () bNumConfigurations 1 <configuration 0> bLength 9 bDescriptorType 2 wTotalLength 39 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 () bmAttributes 192 (Self-powered) MaxPower 10 mA <interface 0> <altsetting 0> bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 255 bInterfaceSubClass 255 bInterfaceProtocol 255 iInterface 0 () <endpoint 0> bLength 7 bDescriptorType 5 bEndpointAddress 0x81 (in 0x01) bmAttributes 2 (bulk) wMaxPacketSize 512 bInterval 0 ms bRefresh 0 bSynchAddress 0 <endpoint 1> bLength 7 bDescriptorType 5 bEndpointAddress 0x02 (out 0x02) bmAttributes 2 (bulk) wMaxPacketSize 512 bInterval 0 ms bRefresh 0 bSynchAddress 0 <endpoint 2> bLength 7 bDescriptorType 5 bEndpointAddress 0x83 (in 0x03) bmAttributes 3 (interrupt) wMaxPacketSize 1 bInterval 8 ms bRefresh 0 bSynchAddress 0 <trying to find out which USB chip is used> checking for GT-6801 ... this is not a GT-6801 (bcdUSB = 0x200) checking for GT-6816 ... this is not a GT-6816 (bDeviceClass = 255, bInterfaceClass = 255) checking for GT-8911 ... this is not a GT-8911 (check 1, bDeviceClass = 255, bInterfaceClass = 255) checking for MA-1017 ... this is not a MA-1017 (bDeviceClass = 255, bInterfaceClass = 255) checking for MA-1015 ... this is not a MA-1015 (bcdUSB = 0x200) checking for MA-1509 ... this is not a MA-1509 (bcdUSB = 0x200) checking for LM983[1,2,3] ... this is not a LM983x (bcdUSB = 0x200) checking for GL646 ... this is not a GL646 (bDeviceClass = 255, bInterfaceClass = 255) checking for GL646_HP ... this is not a GL646_HP (bcdUSB = 0x200) checking for GL660+GL646 ... this is not a GL660+GL646 (bDeviceClass = 255, bInterfaceClass = 255) checking for GL841 ... this is not a GL841 (writing register failed) checking for ICM532B ... this is not a ICM532B (check 2, bcdUSB = 0x200) checking for PV8630/LM9830 ... this is not a PV8630/LM9830 (bDeviceClass = 255) checking for M011 ... this is not a M011 (bcdUSB = 0x200) checking for RTS8822L-01H ... this is not a RTS8822L-01H (bDeviceClass = 255) checking for rts8858c ... this is not a rts8858c (bDeviceClass = 255) checking for SQ113 ... this is not a SQ113 (bDeviceClass = 255) <Couldn't determine the type of the USB chip (result from sane-backends 1.0.18)> found USB scanner (vendor=0x04a9 [Canon], product=0x221b [CanoScan]) at libusb:001:003