PCI为Peripheral Component Interconnect 的缩写,它是由 Intel 所发表的另一种局部总线 (另一种为 VESA Local Bus),以配合 Pentium 系列的微处理机为主,PCI 的最大特点在于它是和主机板不相关的接口,而且一台主机最多支持 16 台使用 PCI 接口的外围设备,这种总线架构还支持 PowerPC 等机种,因此 PCI 适配卡将...
xillybus: pci_request_regions() failed. Aborting. Meaning This error message is issued when failing to take ownership of the memory region used to communicate directly with the processor's Xillybus peripheral. This can happen when a removal of the Xillybus driver from the kernel failed partially,...
ne2k-pci 0000:00:08.0: of_irq_parse_pci: failed with rc=-22 On x86_64, it doesn't work either, but for a different reason. This is printed repeatedly: ne2k-pci 0000:00:08.0 eth0: NETDEV WATCHDOG: CPU: 0: transmit queue 0 timed out 892 ms It does work on the cloud-hyperviso...
staticintorinoco_plx_init_one(struct pci_dev *pdev,conststruct pci_device_id *ent){interr;structorinoco_private*priv;structorinoco_pci_card*card;void__iomem *hermes_io, *attr_io, *bridge_io; err = pci_enable_device(pdev);if(err) { printk(KERN_ERR PFX"Cannot enable PCI device\n");r...
printk(KERN_ALERT "PCI driver: Probe function\n"); /* * Enable the bus-master bit values. * Some PCI BIOSes fail to set the master-enable bit. * Some demos support being an initiator, so need bus master ability. */ err = pci_request_regions(dev, "pci_skell"); ...
1. pci_enable_device(pdev); 2. pci_request_regions(pdev, DRV_NAME); 3. pci_set_master(pdev); ... > > > > lspci output > === > 0000:00:00.0 Power PC: Freescale Semiconductor Inc Unknown device 00c6 (rev > 21) > 0001:...
pci_request_regions() failure(error -EBUSY). The interesting thing is the region that it fails for. According to /proc/iomem, slot0 has a8000000-b7ffffff as its memory ranges. However, the memory region requested by my device is a8000000-a803ffff and a8040000-a807ffff which falls in th...
> pci_request_regions() failure(error -EBUSY). The interesting thing is the > region that it fails for. According to /proc/iomem, slot0 has > a8000000-b7ffffff as its memory ranges. However, the memory region requested > by my device is a8000000-a803ffff and a8040000-a807ffff which...
pci_read_config_word(pdev, PCI_BASE_ADDRESS_0, &value); printk... pci_read_config_word(pdev, PCI_BASE_ADDRESS_1, &value); printk... And you can print this pci_resource_start(pdev, bar), pci_resource_len(pdev, bar) from the function, __pci_request_region, on the file drivers...
PCI_PREF_MEMORY_BASE, 0); and pci_write_config_word(dev, PCI_PREF_MEMORY_LIMIT, 0); function calls)? And also, I will be really thankful to you if you also tell me the function in which I should place there function calls as I am new to linux device driver programming. ...