I am trying to build Openwrt 25.04 (Snapshot with Linux 6.12) for my router with RM520N-CN in. I need mhi pcie driver and qmi wwan driver. I tried to use old quectel mhi driver v1.3.7, but it didn’t work:
pcie_mhi-1.3.7/core/mhi_init.c:647:25: error: 'no_llseek' undeclared here (not in a function); did you mean 'noop_llseek'?
647 | .llseek = no_llseek,
| ^~~~~~~~~
| noop_llseek
Could you please share?