Driver crashes under Linux 4.19

[jbman35]

Hello,

I tried to use your CH341PAR_LINUX driver under Linux 4.19. I managed to compile and load the module properly (an include is missing for this kernel version btw). I am using it with the LC-Technology module.

However I get inconsistent information while using CH34x_GetVendorId. You can see below the kernel traces of 2 subsequent calls:

[32884.966386] /home/test/CH341PAR_LINUX/driver/ch34x_pis.c 874: CH34x_GET_DRV_VERSION Successed
[32884.966424] /home/test/CH341PAR_LINUX/driver/ch34x_pis.c 197: VENDOR_READ_TYPE: 0x5f : 0x0 : 0x0 -11 - 2
[32884.966434] /home/test/CH341PAR_LINUX/driver/ch34x_pis.c 885: ------> 2 Chip Version is sucessful 0xffffffb0ffffff93

[32897.046547] /home/test/CH341PAR_LINUX/driver/ch34x_pis.c 874: CH34x_GET_DRV_VERSION Successed
[32897.046585] /home/test/CH341PAR_LINUX/driver/ch34x_pis.c 197: VENDOR_READ_TYPE: 0x5f : 0x0 : 0x0 -11 - 2
[32897.046595] /home/test/CH341PAR_LINUX/driver/ch34x_pis.c 885: ------> 2 Chip Version is sucessful 0x6b3

Furthermore, a call to CH34xSetStream for instance leads to a kernel crash.

Any ideas of what is wrong?

[boseji]

Hi,

Thanks for testing out the Driver. However, the driver was designed by Jiangsu QinHeng Ltd.
You can contact their support.

Let us know your further inputs.

Regards,
@boseji