Pci Device — Driver For

lspci -vvv -s 04:00.0

But her eye caught a tiny race. An if statement that checked a flag before re-enabling interrupts from the chip. If that flag was set late—by even a microsecond—the chip would think the driver was still busy. It would stop raising interrupts. The receive ring would fill. Packets would sit in the chip's FIFO, getting old, then get dropped. driver for pci device

She looked one more time at the output of lspci . The device was still just a line of hexadecimal. But now, she had looked inside. And it made sense. lspci -vvv -s 04:00