# old version (without -$pkgrel): ${1%%-*}
# new version (without -$pkgrel): ${2%%-*}

post_install() {
    dkms install rt5592sta_linux_patched-dkms/${1%%-*}
}

pre_upgrade() {
    pre_remove ${2%%-*}
}

post_upgrade() {
    post_install ${1%%-*}
}

pre_remove() {
    dkms remove rt5592sta_linux_patched-dkms/${1%%-*} --all
}