---
name: "pcix_set_mmrbc"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/pcix_set_mmrbc"
---

# pcix\_set\_mmrbc(9)

set PCI-X maximum memory read byte count

## NAME

pcix\_set\_mmrbc - set PCI-X maximum memory read byte count

## SYNOPSIS

**int pcix\_set\_mmrbc(struct pci\_dev \*** *dev***, int** *mmrbc***);**

## ARGUMENTS

*dev*

PCI device to query

*mmrbc*

maximum memory read count in bytes valid values are 512, 1024, 2048, 4096

## DESCRIPTION

If possible sets maximum memory read byte count, some bridges have erratas that prevent this.

## COPYRIGHT