| title: | PATCH 4 4 parse USB audio class 2 endpoints |
|
Signed-off-by: Daniel Mack <daniel@xxxxxxxx
---
lsusb.c | 62 +++++++++++++++++++++++++++++++++++++++++++++-----------------
1 files changed, 45 insertions(+), 17 deletions(-)
diff --git a/lsusb.c b/lsusb.c
index 31d9b08..43ce219 100644
--- a/lsusb.c
+++ b/lsusb.c
@@ -119,7 +119,7 @@ static void dump_videostreaming_interface(unsigned char *buf);
static void dump_dfu_interface(unsigned char *buf);
static char *dump_comm_descriptor(struct usb_dev_handle *dev, unsigned char *buf, char *indent);
static void dump_hid_device(struct usb_dev_handle *dev, struct usb_interface_descriptor *interface, unsigned char *buf);
-static void dump_audiostreaming_endpoint(unsigned char *buf);
+static void dump_audiostreaming_endpoint(unsigned char *buf, int protocol);
static void dump_midistreaming_endpoint(unsigned char *buf);
static void dump_hub(char *prefix, unsigned char *p, int has_tt);
static void dump_ccid_device(unsigned char *buf);
@@ -745,7 +745,7 @@ static void dump_endpoint(struct usb_dev_handle *dev, struct usb_interface_descr
switch (buf[1]) {
case USB_DT_CS_ENDPOINT:
if (interface- bInterfaceClass == 1 && interface- bInterfaceSubClass == 2)
- dump_audiostreaming_endpoint(buf);
+ dump_audiostreaming_endpoint(buf, interface- bInterfaceProtocol);
else if (interface- bInterfaceClass == 1 && interface- bInterfaceSubClass == 3)
dump_midistreaming_endpoint(buf);
break;
@@ -1862,14 +1862,21 @@ static void dump_audiostreaming_interface(struct usb_dev_handle *dev, unsigned c
}
}
-static void dump_audiostreaming_endpoint(unsigned char *buf)
+static const struct bmcontrol uac2_audio_endpoint_bmcontrols[] = {
+ { "Pitch", 0 },
+ { "Data Overrun", 1 },
+ { "Data Underrun", 2 },
+ { NULL }
+};
+
+static void dump_audiostreaming_endpoint(unsigned char *buf, int protocol)
{
static const char *lockdelunits[] = { "Undefined", "Milliseconds", "Decoded PCM samples", "Reserved" };
unsigned int lckdelidx;
if (buf[1] != USB_DT_CS_ENDPOINT)
printf(" Warning: Invalid descriptor
");
- else if (buf[0] < 7)
+ else if (buf[0] < ((protocol == USB_AUDIO_CLASS_1) ? 7 : 8))
printf(" Warning: Descriptor too short
");
printf(" AudioControl Endpoint Descriptor:
"
" bLength %5u
"
@@ -1877,19 +1884,40 @@ static void dump_audiostreaming_endpoint(unsigned char *buf)
" bDescriptorSubtype %5u (%s)
"
" bmAttributes 0x%02x
",
buf[0], buf[1], buf[2], buf[2] == 1 ? "EP_GENERAL" : "invalid", buf[3]);
- if (buf[3] & 1)
- printf(" Sampling Frequency
");
- if (buf[3] & 2)
- printf(" Pitch
");
- if (buf[3] & 128)
- printf(" MaxPacketsOnly
");
- lckdelidx = buf[4];
- if (lckdelidx 3)
- lckdelidx = 3;
- printf(" bLockDelayUnits %5u %s
"
- " wLockDelay %5u %s
",
- buf[4], lockdelunits[lckdelidx], buf[5] | (buf[6] << 8), lockdelunits[lckdelidx]);
- dump_junk(buf, " ", 7);
+
+ switch (protocol) {
+ case USB_AUDIO_CLASS_1:
+ if (buf[3] & 1)
+ printf(" Sampling Frequency
");
+ if (buf[3] & 2)
+ printf(" Pitch
");
+ if (buf[3] & 128)
+ printf(" MaxPacketsOnly
");
+ lckdelidx = buf[4];
+ if (lckdelidx 3)
+ lckdelidx = 3;
+ printf(" bLockDelayUnits %5u %s
"
+ " wLockDelay %5u %s
",
+ buf[4], lockdelunits[lckdelidx], buf[5] | (buf[6] << 8), lockdelunits[lckdelidx]);
+ dump_junk(buf, " ", 7);
+ break;
+
+ case USB_AUDIO_CLASS_2:
+ if (buf[3] & 128)
+ printf(" MaxPacketsOnly
");
+
+ printf(" bmControls 0x%02x
", buf[4]);
+ dump_audio_bmcontrols(" ", buf[4], uac2_audio_endpoint_bmcontrols, protocol);
+
+ lckdelidx = buf[5];
+ if (lckdelidx 3)
+ lckdelidx = 3;
+ printf(" bLockDelayUnits %5u %s
"
+ " wLockDelay %5u
",
+ buf[5], lockdelunits[lckdelidx], buf[6] | (buf[7] << 8));
+ dump_junk(buf, " ", 8);
+ break;
+ } /* switch protocol */
}
static void dump_midistreaming_interface(struct usb_dev_handle *dev, unsigned char *buf)
--
1.7.1
--
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