Re: [gentoo-user] [OT?]: CH340 working/not working with ESP286 Node MCU

Corbin Bird <corbinbird@×××××××.net> [16-07-10 14:03]:
>
> On 07/07/2016 10:22 PM, Meino.Cramer@×××.de wrote:
> >Hi,
> >
> >I have bought an ESP8266 Lua NodeMCU board, which has
> >an FTDI-like chip on board to map USB to serial and
> >vice versa. It is an CH340 one.
> >There is an according module in the driver (compiled
> >and - to get shure - loaded by hand).
> >
> >When I connect the ESP8266 board to my Gentoo PC
> >nothing happens (dmesg shows nothing).
> >When pressing RST on the board, I see this sometimes:
> >
> >[ 4340.105221] usb 7-4: new full-speed USB device number 9 using
> >ohci-pci
> >[ 4340.630234] usb 7-4: device not accepting address 9, error -62
> >
> >(both lines are printed right after another - no delay...)
> >
> >or this:
> >
> >[ 4473.567739] usb 7-4: new full-speed USB device number 11 using
> >ohci-pci
> >[ 4473.712306] usb 7-4: New USB device found, idVendor=1a86,
> >idProduct=7523
> >[ 4473.712316] usb 7-4: New USB device strings: Mfr=0, Product=2,
> >SerialNumber=0
> >[ 4473.712321] usb 7-4: Product: USB2.0-Serial
> >[ 4473.763259] usbcore: registered new interface driver ch341
> >[ 4473.763278] usbserial: USB Serial support registered for ch341-uart
> >[ 4473.763295] ch341 7-4:1.0: ch341-uart converter detected
> >[ 4473.786463] usb 7-4: ch341-uart converter now attached to ttyUSB1
> >[ 4473.888987] usb 7-4: USB disconnect, device number 11
> >[ 4473.889485] ch341-uart ttyUSB1: ch341-uart converter now
> >disconnected from ttyUSB1
> >[ 4473.889511] ch341 7-4:1.0: device disconnected
> >[ 4474.292773] usb 7-4: new full-speed USB device number 12 using
> >ohci-pci
> >
> >there is no new device under /dev/.
> >
> >Do I miss something seriously important here related to using the
> >CH340 driver...or is this board simply demaged ???
> >
> >Thank you very much in advance for any help!
> >
> >Best regards,
> >Meino
> >
> >
> >
> >
> >
> >
> >
> >
> If memory serves, udev/eudev generates the nodes/devices in /dev now.
> To get the correct hardware ID, it uses a specific database.
>
> The hardware ID's database may need to be updated ( or supplemented ).
> The package "sys-apps/pciutils" has the hardware database included in
> it.
>
> I have a 990FX chipset MB that is constantly ID as a 880 chipset board.
> No info on 990FX chipsets found in the hardware ID's database.
> The kernel keeps applying a 880 chipset workaround for the PCI bus,
> every boot.
>
> Same problem I think, different hardware.
>

Hi Corbin,

Thanks for your help, Corbin! :)

neither lsusb nor usb-devices do list the device. 

Another CH340 based board do register correctly and ttyUSB is created.
Therefore (I think) the infrastructure of my Gentoo LINUX can handle
such board correctly and this [CENSORED] one ist either send without
any firmware or simply demaged.

I need the help of one who has solved similiar problems
with an NodeMCU v3 Lua (ESP8266)-board...sigh...

Best regards,
Meino