I have a PCI device installed and its driver loaded in the system. Is it legal for me to (from another driver) access this device configuration and IO space ? If this is OK, than do I need some setup before I can do this. For example, in the original driver, steps are - pci_read_config_byte(pdev, PCI_CLASS_PROG, &tmp8); - pci_enable_device(pdev); - pci_request_regions(pdev, DRV_NAME); - pci_set_dma_mask(pdev, ATA_DMA_MASK); - pci_set_master(pdev); And, I have following steps in my driver - my_dev = (struct pci_dev *) pci_find_device(VENDOR, DEVICE, NULL) - pci_read_config_byte(sata_dev, PCI_CLASS_PROG, &tmp8); - theOffset = pci_resource_start(my_dev, 0); - STATUS = pci_resource_start(my_dev, 1) | 2; - outb_p(0, theOffset + FEATURE1); - outb_p(0, theOffset + FEATURE2); Do I need to enable PCI device in my driver ? am I doing this correctly ? Where can I read more about PCI bus and programming pci drivers, what is the good source ? Usman Ansari --- http://pacifica.org/ __________________________________ Do you Yahoo!? The New Yahoo! Shopping - with improved product search http://shopping.yahoo.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
