The original code to print bmAttributes had the meaning of the LTM bit
backwards. The USB 3.0 spec, section 9.6.2.2, says that bit 1 means:
"LTM Capable. A value of one in this bit location indicates that this
device has is capable of generating Latency Tolerance Messages."
Only print LTM supported if bit 1 is set.
Signed-off-by: Sarah Sharp <sarah.a.sharp@xxxxxxxxxxxxxxx>
---
lsusb.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/lsusb.c b/lsusb.c
index 738d65a..e18bb17 100644
--- a/lsusb.c
+++ b/lsusb.c
@@ -3609,7 +3609,7 @@ static void dump_ss_device_capability_desc(unsigned char *buf)
" bDevCapabilityType %5u\n"
" bmAttributes 0x%02x\n",
buf[0], buf[1], buf[2], buf[3]);
- if (!(buf[3] & 0x02))
+ if (buf[3] & 0x02)
printf(" Latency Tolerance Messages (LTM)"
" Supported\n");
printf(" wSpeedsSupported 0x%02x%02x\n", buf[5], buf[4]);
--
1.7.9
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