kernel: add status codes for device IO
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@@ -13,6 +13,8 @@ typedef unsigned int kern_status_t;
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#define KERN_WOULD_BLOCK (7)
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#define KERN_BUSY (8)
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#define KERN_NO_DEVICE (9)
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#define KERN_DEVICE_STUCK (10)
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#define KERN_IO_ERROR (11)
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extern const char *kern_status_string(kern_status_t status);
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