Android doesnt have the udevd daemon and so device nodes are created
using default kernel given name. This patch enables powertop2 to check
the kernel default locations of msr registers.
---
cpu/intel_cpus.cpp | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/cpu/intel_cpus.cpp b/cpu/intel_cpus.cpp
index f42f3b4..db5afb2 100644
--- a/cpu/intel_cpus.cpp
+++ b/cpu/intel_cpus.cpp
@@ -60,6 +60,16 @@ static uint64_t get_msr(int cpu, uint64_t offset)
char msr_path[256];
fd = sprintf(msr_path, "/dev/cpu/%d/msr", cpu);
+
+ if (access(msr_path, R_OK) != 0){
+ fd = sprintf(msr_path, "/dev/msr%d", cpu);
+
+ if (access(msr_path, R_OK) != 0){
+ fprintf(stderr, "msr reg not found");
+ exit(-2);
+ }
+ }
+
fd = open(msr_path, O_RDONLY);
retval = pread(fd, &msr, sizeof msr, offset);
--
1.7.0.4
---------------------------------------------------------------------
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