build error on fl2000_fops.c

[Cxarli]

/FL2000/src/fl2000_fops.c:120:11: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
  .fault = fl2000_vm_fault,
           ^~~~~~~~~~~~~~~
/FL2000/src/fl2000_fops.c:120:11: note: (near initialization for ‘fl2000_vma_ops.fault’)

I used KERNEL_PATH = /usr/lib/modules/uname -r/build in the Makefile.

uname -r gives 4.12.8-2-ARCH

I have the linux-headers package installed (version 4.12.8-2)

[midaszhou]

It seems function static int fl2000_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) shall be changed to:
static int fl2000_vm_fault(struct vm_fault *vmf)
{
struct vm_area_struct *vma = vmf->vma;
...
This woks on Linux 4.11.2. However, I get yellow flashing screen only.......

[fresco-fl2000]

I've fixed the compiler errors on kernel 4.11.0, and usb_control_msg() failure. Starting from some kernel version, the USB core discriminates against data buffer from stack (eg. local variables) when using usb_control_transfer.

The following line shows the core team decides that buffer allocated from vmalloc() is banned when the client driver wishes to call usb_control_msg(). This is really rediculous.

http://elixir.free-electrons.com/linux/v3.18/source/drivers/usb/core/hcd.c#L1503

anyway, please try the latest code and see if it helps.