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27 lines
377 B
C
27 lines
377 B
C
#include <stdint.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include "perf.h"
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uint64_t i915_type_id(void)
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{
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char buf[1024];
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int fd, n;
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fd = open("/sys/bus/event_source/devices/i915/type", 0);
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if (fd < 0) {
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n = -1;
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} else {
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n = read(fd, buf, sizeof(buf)-1);
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close(fd);
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}
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if (n < 0)
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return 0;
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buf[n] = '\0';
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return strtoull(buf, 0, 0);
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}
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