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WinExperements wrote:

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    outb(inter_ata->bar4+4,0x00);

What is this code supposed to do? It definitely won't do anything useful.

WinExperements wrote:

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    kprintf("Status of drive(after sending there commands): 0x%x\n",inb(inter_ata->base+ATA_REG_STATUS));

Debugging might be easier if you display the value of the status register from the first time you read it instead of reading it a second time.

Where do you acknowledge the interrupt in the interrupt controller?