This is the issue I have with recently acquired PL2303 adapter:
[ 70.502848] usb 1-2: new full-speed USB device number 5 using xhci_hcd
[ 70.652523] usb 1-2: New USB device found, idVendor=067b,
idProduct=23f3, bcdDevice= 6.05
[ 70.652533] usb 1-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 70.652538] usb 1-2: Product: USB-Serial Controller
[ 70.652540] usb 1-2: Manufacturer: Prolific Technology Inc.
[ 70.652543] usb 1-2: SerialNumber: CJAKj19B616
[ 70.674558] usbcore: registered new interface driver usbserial_generic
[ 70.674578] usbserial: USB Serial support registered for generic
[ 70.677490] usbcore: registered new interface driver pl2303
[ 70.677498] usbserial: USB Serial support registered for pl2303
[ 70.677510] pl2303 1-2:1.0: pl2303 converter detected
[ 70.677513] pl2303 1-2:1.0: unknown device type, please report to
linux-usb@xxxxxxxxxxxxxxx
lsusb -v -d 067b:23f3
Bus 001 Device 005: ID 067b:23f3 Prolific Technology, Inc. USB-Serial Controller
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x067b Prolific Technology, Inc.
idProduct 0x23f3
bcdDevice 6.05
iManufacturer 1 Prolific Technology Inc.
iProduct 2 USB-Serial Controller
iSerial 3 CJAKj19B616
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x0027
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 100mA
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 0x000a 1x 10 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 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Signed-off-by: Dawid Buchwald <buchwald.dawid@xxxxxxxxx>
---
drivers/usb/serial/pl2303.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index a70fd86f735c..1072f8eb6ab9 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -435,6 +435,7 @@ static int pl2303_detect_type(struct usb_serial *serial)
case 0x105:
case 0x305:
case 0x405:
+ case 0x605:
/*
* Assume it's an HXN-type if the device doesn't
* support the old read request value.
--
2.32.0
