[ 1197.688323] genirq: Failed to request resources for wiegand-gpio (irq 236) on irqchip gpio-mxc[ 1197.697075] wiegand-gpio wiegand_port3: D0 IRQ 236 not allocatedcat: wiegand_port3: Input/output errorroot@falcon-4866:/dev#the related code is here:...
DEBUGMSG (1,(TEXT("v_pIOPRegs is not allocated "))); return TRUE; } if (!VirtualCopy((PVOID)v_pIOPRegs, (PVOID)IOP_BASE, sizeof(IOPreg), PAGE_READWRITE|PAGE_NOCACHE)) { DEBUGMSG (1,(TEXT("v_pIOPRegs is not mapped "))); return TRUE; } DEBUGMSG (1,(TEXT("v_pIOPRegs ...
{ DEBUGMSG (1,(TEXT("v_pIOPRegs is not allocated "))); return TRUE; } if (!VirtualCopy((PVOID)v_pIOPRegs, (PVOID)IOP_BASE, sizeof(IOPreg), PAGE_READWRITE|PAGE_NOCACHE)) { DEBUGMSG (1,(TEXT("v_pIOPRegs is not mapped "))); return TRUE; } DEBUGMSG (1,(TEXT("v_pIOPRegs...
{ DEBUGMSG (1,(TEXT("v_pIOPRegs is not allocated "))); return TRUE; } if (!VirtualCopy((PVOID)v_pIOPRegs, (PVOID)IOP_BASE, sizeof(IOPreg), PAGE_READWRITE|PAGE_NOCACHE)) { DEBUGMSG (1,(TEXT("v_pIOPRegs is not mapped "))); return TRUE; } DEBUGMSG (1,(TEXT("v_pIOPRegs...
DEBUGMSG (1,(TEXT("v_pIOPRegs is not allocated\n\r"))); return TRUE; } if (!VirtualCopy((PVOID)v_pIOPRegs, (PVOID)IOP_BASE, sizeof(IOPreg), PAGE_READWRITE|PAGE_NOCACHE)) { DEBUGMSG (1,(TEXT("v_pIOPRegs is not mapped\n\r"))); ...
("Device Nr. could not be allocated!\n"); return -1; } printk("read_write - Device Nr. Major: %d, Minor: %d was registered!\n", my_device_nr >> 20, my_device_nr && 0xfffff); if ((my_class = class_create(DRIVER_CLASS)) == NULL) { printk("Device class can not be ...
As many callbacks as needed can be added as long as each of them are unique pointers of struct gpio_callback. Beware such structure should not be allocated on stack. Note: To help setting it, see gpio_init_callback() below Next Previous © Copyright 2015-2020 Zephyr Project members ...
allocated resources are freed after closing the device file descriptor and adds several new features that are not present in the obsolete sysfs interface (like event polling, setting/reading multiple values at once or open-source and open-drain GPIOs). Unfortunately interacting with the linux ...
{inti, ret, virq;/* 下面这个函数会从系统中一个唯一的virq,其实就是全局变量allocated_irqs从低位到高位第一个为0的位的位号. 然后将allocated_irqs的第virq位置为1, 然后会为这个virq分配一个irq_desc, virq会存放到irq_desc的irq_data.irq中. ...
The new character device interface guarantees all allocated resources are freed after closing the device file descriptor and adds several new features that are not present in the obsolete sysfs interface (like event polling, setting/reading multiple values at once or open-source and open-drain GPIOs...