Man pages matching name pmemblk_ctl_get in section 3:

pmemblk_ctl_get.3.en	debian 10 / libpmemblk-dev
pmemblk_ctl_get.3.en	debian 11 / libpmemblk-dev
pmemblk_ctl_get.3.en	debian 12 / libpmemblk-dev