OS2 World Community Forum
OS/2, eCS & ArcaOS - Technical => Hardware => Topic started by: Igor on December 23, 2024, 07:27:29 pm
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Help me, please. Add support for this device to the USBCOM driver.
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)
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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.
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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.
62 / 5 000
I use GSM module. I also plan to use Arduino.
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Help me, please. Add support for this device to the USBCOM driver.
Perhaps a silly question, but have you tried USBSER,SYS?
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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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The usbcom driver supports a lot of devices already. What is your output of this.
Device=C:\os2\boot\usbcom.sys /v
If nothing is found, maybe you need a different USB serial port converter?
Also, even the newest desktop computers still seem to have serial ports.
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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
I use Prolifc PL2303 USB 2.0 to COM and it works (partially). But I can’t connect this to Arduino.
Perhaps he gives out 5 volt COM and this solves the problem.
I will check it soon.
I ordered ProLIFC PL2303 converter to com-TTL and expect delivery. Perhaps this will work.
However, CН340 is much more common and affordable.
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The usbcom driver supports a lot of devices already. What is your output of this.
Device=C:\os2\boot\usbcom.sys /v
If nothing is found, maybe you need a different USB serial port converter?
Also, even the newest desktop computers still seem to have serial ports.
Of course, the USBCOM.Sys driver is installed and launched.
And, alas, on my motherboard there is not even a detachment for serial port. And there is no chip either.
I have already ordered another converter of the outdated model. If nothing can be done, I will try with him.