Visioneer OneTouch 7700
Scanlogic SL11R-IDE, EliteMT M11B416256A, VT030AJ, Winbond W24L257Aj. According to sane-find-scanner, it's a LM9832/3.
May work with the Plustek backend after some modification.
<device descriptor of 0x04a7/0x0380 at 002:003 (Visioneer OneTouch 7700)> bLength 18 bDescriptorType 1 bcdUSB 1.00 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x04A7 idProduct 0x0380 bcdDevice 1.00 iManufacturer 64 (Visioneer) iProduct 85 (OneTouch 7700) iSerialNumber 0 () bNumConfigurations 1 <configuration 0> bLength 9 bDescriptorType 2 wTotalLength 39 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 () bmAttributes 192 (Self-powered) MaxPower 0 mA <interface 0> <altsetting 0> bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 255 bInterfaceSubClass 0 bInterfaceProtocol 255 iInterface 0 () <endpoint 0> bLength 7 bDescriptorType 5 bEndpointAddress 0x81 (in 0x01) bmAttributes 3 (interrupt) wMaxPacketSize 1 bInterval 16 ms bRefresh 0 bSynchAddress 0 <endpoint 1> bLength 7 bDescriptorType 5 bEndpointAddress 0x82 (in 0x02) bmAttributes 2 (bulk) wMaxPacketSize 64 bInterval 0 ms bRefresh 0 bSynchAddress 0 <endpoint 2> bLength 7 bDescriptorType 5 bEndpointAddress 0x03 (out 0x03) bmAttributes 2 (bulk) wMaxPacketSize 64 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 = 0x100) checking for GT-8911 ... this is not a GT-8911 (check 2, bcdUSB = 0x100) 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 USB chip looks like a LM9832/3> found USB scanner (vendor=0x04a7 [Visioneer], product=0x0380 [OneTouch 7700], chip=LM9832/3) at libusb:002:003
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