我检查了dmesg错误,如下所示:[329479.860009] nand: timeout while waiting for chip to become ready[329480.260023] r852: detected SmartMedia readonly card in slot
[329480.524457] r59
硬件- Raspberry pi 4型号B8GB OS - Raspberry pi OS Buster(10)(2020-05-27-raspios-buster-full-armhf.img)(linuxper_cpu_ptr(desc->kstat_irqs, j) : 0);
if (desc->irq_data.chip) {
if (desc->irq_data
我正在学习Linux内核中的中断处理,并在下面的代码片段中尝试在IRQ2上注册一个虚拟irq处理程序。IRQ 2Here with registering IRQ handler on IRQ2 for flowTest...retval_irqreg\n");// IRQ handler function
static irqreturn_t flow_irq