This patch adds USB2-LPM-Errata for USB2.0 Binary Object Store
Descriptor that support Best Effort Latency Tolerance (BELT),
with the Baseline BESL value, and Deep BESL values. Additionally, it
identifies if a Binary Object Store Descriptor is pre-errata HIRD
Link Power Management.
Signed-off-by: Alexandra Yates <alexandra.yates@xxxxxxxxx>
---
lsusb.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/lsusb.c b/lsusb.c
index 4306697..5e92297 100644
--- a/lsusb.c
+++ b/lsusb.c
@@ -3639,9 +3639,18 @@ static void dump_usb2_device_capability_desc(unsigned char *buf)
buf[0], buf[1], buf[2], wide);
if (!(wide & 0x02))
printf(" (Missing must-be-set LPM bit!)\n");
- else
- printf(" Link Power Management (LPM)"
+ else if (!(wide & 0x04))
+ printf(" HIRD Link Power Management (LPM)"
+ " Supported\n");
+ else {
+ printf(" BESL Link Power Management (LPM)"
" Supported\n");
+ if (wide & 0x08)
+ printf(" BESL value %5u us \n", wide & 0xf00);
+ if (wide & 0x10)
+ printf(" Deep BESL value %5u us \n",
+ wide & 0xf000);
+ }
}
static void dump_ss_device_capability_desc(unsigned char *buf)
--
1.7.9.5
--
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