On 1/12/22 10:54 AM, Greg KH wrote:
That driver tried to be an example for an unknown device, doing multiple
different things that no single driver/device would probably ever need.
Also it can almost always just be replaced with a simple userspace
program using libusb, as I bet your driver could be replaced with as
well, right?
Yes it can be replaced by a userspace program but even this is not
required. For the USB LCD a userspace program is available from vendor.
For the USB to serial Adapter the driver exists in the kernel ch341.c.
It appears as a ttyUSB0 device.
I think what happens to very custom drivers that could be userspace
programs can be seen in the file /drivers/usb/misc/usblcd.c
- It is written in 2005 and is only supporting one device from one vendor.
- I cannot find/buy a suitable device.
- I have tried two times to contact the author of the driver but:
The response from the remote server was:
550 5.1.1 <g.toth@xxxxxxxx>: Recipient address rejected: User unknown
- The idVendor = 0x10D2 does also not help because RayComposer - R.
Adams does not response and does not seam to offer such products.
To me it is unused code but how to verify? When it is unused what does
the kernel do with it? Putting it to the staging area?
Thanks for your time.
Bye Philipp
_______________________________________________
Kernelnewbies mailing list
Kernelnewbies@xxxxxxxxxxxxxxxxx
https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
