2.2 pci_bus_claim_resources void pci_bus_claim_resources(struct pci_bus *b) { pci_bus_allocate_resources(b); pci_bus_allocate_dev_resources(b); } EXPORT_SYMBOL(pci_bus_claim_resources); pci_bus_claim_resource会为bus和dev分别申请resources. pci_bus_allocate_resources static void pci_bus_al...
echo "vendor device subvendor subdevice class class_mask driver_data" > \ /sys/bus/pci/drivers/{driver}/new_id 所有字段都以十六进制值传递(无前导0x)。vendor和 device 字段是强制性的,其他字段是可选的。用户只需传递所需数量的可选字段: - subvendor 和 subdevice 字段默认为 PCI_ANY_ID (FFFFF...
包括总线range(因为是Root Port,所以从0～255),获取device tree中定义的range,生成相应的resource。然后通过devm_request_pci_bus_resources(dev, &res)向内核申请。 五、生成pci bus,枚举生成PCI设备树 bus = pci_create_root_bus(dev, 0, &xilinx_pcie_ops, port, &res); if (!bus) { err = -ENOMEM;...
14 printk(KERN_ERR "PCI: OOM, skipping PCI bus %02x\n", busno); 15 return NULL; 16 } 17 sd->node = node; 18 /*给总线分配资源*/ 19 x86_pci_root_bus_resources(busno, &resources); 20 printk(KERN_DEBUG "PCI: Probing PCI hardware (bus %02x)\n", busno); 21 bus = pci_scan_...
This ECN is a request for modifications to the parag...view more 1.x ECN June 16, 2005 Generic Capability Structure for SATA Host Bus Adapters The functional changes proposed involve the definiti...view more 3.x ECN October 17, 2004 PCI Bus Power Management Interface Specification Revis...
> * Like calling request_region(); > */ > int err, i; > 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...
i = pci_request_regions(pdev,"PCI200SYN");if(i) { pci_disable_device(pdev);returni; } card = kmalloc(sizeof(card_t), GFP_KERNEL);if(card ==NULL) { printk(KERN_ERR"pci200syn: unable to allocate memory\n"); pci_release_regions(pdev); ...
* Like calling request_region(); */ int err, i; 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. ...
D3COLD_REQUEST_AUX_POWER callback function D3COLD_REQUEST_CORE_POWER_RAIL callback function D3COLD_REQUEST_PERST_DELAY callback function D3COLD_SUPPORT_INTERFACE structure DEVICE_BUS_SPECIFIC_RESET_INFO structure DEVICE_BUS_SPECIFIC_RESET_TYPE union DEVICE_CAPABILITIES structure DEVICE_DESCRIPTION struc...
pcie设备使用2种电源信号供电,Vcc 和 Vaux, 电压为3.3v, Vcc为主电源 PERST#信号, 全局复位,复位设备 REFCLK+ 和 REFCLK-信号,用于与处理器同步 WAKE#, 设备休眠时,主电源停止供电了,可以用该信号通知处理器来唤醒设备 SMCLK, SMDAT, 即SMBus总线,源于I2C,管理处理器系统的外部设备特别是智能电源 ...