rtl8821cu-5.4.1-kernel-5.0
8811cu,8821cu chip linux driver 0bda:c811 source from realtek, maybe work for above chips for the newest linux kernel 4.19-5.0. tested it works on fedora 29 workstation. tenda U9, DWA-17C, Mercury UD6 etc may work. linux kernel 5.0 remove VLA, original source files contain VLAs, this drv just:
- add "-Wno-vla" to Makefile to supress warnings, and
- change a function parameters in os_dep/linux/rtw_android.c. search for access_ok to modified it before compiling. see fix better wait for realtek to release new. but just work fine.
an improved stability got by a fix:
modify core/rtw_wlan_util.c:
source = rtw_zmalloc(2048);
4493 if (source != NULL) {
4494 +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0))
4495 + len = kernel_read(fp, source, len, &pos);
4496 +#else
4497 len = vfs_read(fp, source, len, &pos);
4498 +#endif
4499 rtw_parse_cipher_list(nlo_info, source);
4500 rtw_mfree(source, 2048);
4501 }
...
without this fix, system would get unresponsive randomly in about 30 minutes.