pl2303 USB serial converter: unknown device type

[sukulent]

Hello

I have Cashino PTP-II thermal printer. It doesn't work as expected under tested xanmod kernels - it get's recognized, but no printing ever happens. I am running Debian 10 buster. It works as expected using the 5.10.0-0.bpo.11-amd64 kernel from debian backports. I have tested xanmod kernels 5.15.26-xanmod1 , 5.15.43-xanmod1 and 5.17.11-xanmod1

Under this, there are outputs of lsusb and dmesg for all of the kernels. I can suply other information if you want.

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Here is lsusb -v -d 067b:2303:

Bus 004 Device 004: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.01 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x067b Prolific Technology, Inc. idProduct 0x2303 PL2303 Serial Port bcdDevice 3.00 iManufacturer 1 Prolific Technology Inc. iProduct 2 USB-Serial Controller iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0027 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 (Bus Powered) Remote Wakeup MaxPower 50mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 255 Vendor Specific Class 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 0x0020 1x 32 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0020 1x 32 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0020 1x 32 bytes bInterval 0 can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0000 (Bus Powered)

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Here is the relevant dmesg for every kernel version:

uname -a: Linux no-name 5.17.11-xanmod1 #0~git20220525.9ffe6c5 SMP Wed May 25 19:44:46 UTC 2022 x86_64 GNU/Linux

dmesg: [ 110.828196] usb 4-2: new full-speed USB device number 3 using ohci-pci [ 110.998616] usb 4-2: New USB device found, idVendor=067b, idProduct=2303, bcdDevice= 3.00 [ 110.998622] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 110.998624] usb 4-2: Product: USB-Serial Controller [ 110.998626] usb 4-2: Manufacturer: Prolific Technology Inc. [ 111.738720] usbcore: registered new interface driver usbserial_generic [ 111.738732] usbserial: USB Serial support registered for generic [ 111.854020] usbcore: registered new interface driver pl2303 [ 111.854036] usbserial: USB Serial support registered for pl2303 [ 111.854067] pl2303 4-2:1.0: pl2303 converter detected [ 111.854075] pl2303 4-2:1.0: unknown device type, please report to [email protected]

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uname -a: Linux no-name 5.15.43-xanmod1 #0~git20220525.f800a90 SMP Wed May 25 17:42:44 UTC 2022 x86_64 GNU/Linux

dmesg: [ 120.005732] usb 4-2: new full-speed USB device number 4 using ohci-pci [ 120.178131] usb 4-2: New USB device found, idVendor=067b, idProduct=2303, bcdDevice= 3.00 [ 120.178138] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 120.178140] usb 4-2: Product: USB-Serial Controller [ 120.178142] usb 4-2: Manufacturer: Prolific Technology Inc. [ 120.180298] pl2303 4-2:1.0: pl2303 converter detected [ 120.180310] pl2303 4-2:1.0: unknown device type, please report to [email protected]

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uname -a: Linux no-name 5.15.26-xanmod1 #0~git20220302.3f644fb SMP Wed Mar 2 19:14:56 UTC 2022 x86_64 GNU/Linux

dmesg: [ 568.996007] usb 4-2: new full-speed USB device number 3 using ohci-pci [ 569.166410] usb 4-2: New USB device found, idVendor=067b, idProduct=2303, bcdDevice= 3.00 [ 569.166416] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 569.166418] usb 4-2: Product: USB-Serial Controller [ 569.166419] usb 4-2: Manufacturer: Prolific Technology Inc. [ 569.753616] usbcore: registered new interface driver usbserial_generic [ 569.753628] usbserial: USB Serial support registered for generic [ 569.760498] usbcore: registered new interface driver pl2303 [ 569.760510] usbserial: USB Serial support registered for pl2303 [ 569.760530] pl2303 4-2:1.0: pl2303 converter detected [ 569.760536] pl2303 4-2:1.0: unknown device type, please report to [email protected]

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uname -a: Linux no-name 5.10.0-0.bpo.11-amd64 #1 SMP Debian 5.10.92-1~bpo10+1 (2022-02-03) x86_64 GNU/Linux

dmesg: [26984.831205] usb 8-2: new full-speed USB device number 6 using ohci-pci [26985.062363] usb 8-2: New USB device found, idVendor=067b, idProduct=2303, bcdDevice= 3.00 [26985.062370] usb 8-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [26985.062374] usb 8-2: Product: USB-Serial Controller [26985.062376] usb 8-2: Manufacturer: Prolific Technology Inc. [26985.064467] pl2303 8-2:1.0: pl2303 converter detected [26985.090571] usb 8-2: pl2303 converter now attached to ttyUSB0