Supporting multiple devices in a Linux PCI (Express) driver
#GNU #Linux #Tutorial #Driver #DriverDevelopment
Until now the driver for my qemu emulated PCI Echodevice only supports one device on a system. Today let's change this, so multiple cards can be connected to this system. Therefore we will need to add a Card List and manage it.
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You can find the sourcecode for the pci-echodev at github:
https://github.com/Johannes4Linux/pci...
00:00 Intro
02:47 Global varaiables, init and exit Functions
10:23 Probe & Remove Function changes
19:33 Changing device file callbacks
24:06 Testing
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