OS/2, eCS & ArcaOS - Technical > Hardware
CH340 serial
Igor:
Help me, please. Add support for this device to the USBCOM driver.
--- Code: ---Bus 001 Device 004: ID 1a86:7523 QinHeng Electronics CH340 serial converter
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x1a86 QinHeng Electronics
idProduct 0x7523 CH340 serial converter
bcdDevice 2.64
iManufacturer 0
iProduct 2 USB Serial
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 39
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 98mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 1
bInterfaceProtocol 2
iInterface 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
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 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 1
Device Status: 0x0000
(Bus Powered)
--- End code ---
ivan:
Hi Igor,
What are you using that requires a com port? I haven't used one for the last 10 years so am interested in your usage.
Igor:
--- Quote from: ivan on December 23, 2024, 08:16:58 pm ---Hi Igor,
What are you using that requires a com port? I haven't used one for the last 10 years so am interested in your usage.
--- End quote ---
62 / 5 000
I use GSM module. I also plan to use Arduino.
Doug Bissett:
--- Quote ---Help me, please. Add support for this device to the USBCOM driver.
--- End quote ---
Perhaps a silly question, but have you tried USBSER,SYS?
Martin Iturbide:
Hello
Just in case I had a little experience with this device: Prolifc PL2303 USB 2.0 to COM - 067b:2303
https://www.os2world.com/wiki/index.php?title=Prolifc_PL2303_USB_2.0_to_COM
I used USBCOM.SYS.
My testing was very light, I no longer have any serial device to try.
Regards
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