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diff --git a/share/man/man4/pci.4 b/share/man/man4/pci.4
--- a/share/man/man4/pci.4
+++ b/share/man/man4/pci.4
@@ -22,7 +22,7 @@
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
-.Dd March 1, 2025
+.Dd April 2, 2025
.Dt PCI 4
.Os
.Sh NAME
@@ -372,16 +372,18 @@
.Va pci_bar_mmap
structure, which has the following fields:
.Bl -tag -width Vt struct pcise pbm_sel
-.It Vt uint64_t pbm_map_base
+.It Vt void *pbm_map_base
Reports the established mapping base to the caller.
If
.Va PCIIO_BAR_MMAP_FIXED
flag was specified, then this field must be filled before the call
with the desired address for the mapping.
-.It Vt uint64_t pbm_map_length
+.It Vt size_t pbm_map_length
Reports the mapped length of the BAR, in bytes.
-Its .Vt uint64_t value is always multiple of machine pages.
-.It Vt int64_t pbm_bar_length
+Its
+.Vt size_t
+value is always multiple of machine pages.
+.It Vt uint64_t pbm_bar_length
Reports length of the bar as exposed by the device.
.It Vt int pbm_bar_off
Reports offset from the mapped base to the start of the

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