In order to successfully perform DMA operations on PCI devices, it is necessary to enble PCI bus mastering, so enable it by default.
Signed-off-by: Michael Moese <michael.mo...@men.de> --- drivers/mcb/mcb-pci.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mcb/mcb-pci.c b/drivers/mcb/mcb-pci.c index b15a034..af4d2f2 100644 --- a/drivers/mcb/mcb-pci.c +++ b/drivers/mcb/mcb-pci.c @@ -46,6 +46,7 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) dev_err(&pdev->dev, "Failed to enable PCI device\n"); return -ENODEV; } + pci_set_master(pdev); priv->mapbase = pci_resource_start(pdev, 0); if (!priv->mapbase) { -- 2.6.6