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| author | Felipe Balbi <felipe.balbi@linux.intel.com> | 2017-04-26 16:09:09 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2017-06-02 11:22:29 +0300 |
| commit | af32423a2d866a3263552b000a70c11cffbd2b55 (patch) | |
| tree | 2a07d1337f724e3bdfcb4585f375d01c619e8d55 /Documentation/driver-api | |
| parent | 3587f36a125fd18596e8068ec70cbaae84bb624c (diff) | |
| download | linux-af32423a2d866a3263552b000a70c11cffbd2b55.tar.xz | |
usb: dwc3: trace: decode ctrl request
Instead of *always* dumping raw ctrl bytes, let's decode standard
requests which will make the lives of those debugging DWC3 quite a bit
easier.
Output will now look like so:
irq/34-dwc3-1594 [000] d..1 107.573081: dwc3_ctrl_req: Get Device Descriptor(Index = 0, Length = 18)
irq/34-dwc3-1594 [000] d..1 107.573694: dwc3_ctrl_req: Set Address(Addr = 01)
irq/34-dwc3-1594 [000] d..1 107.588319: dwc3_ctrl_req: Get Device Descriptor(Index = 0, Length = 18)
irq/34-dwc3-1594 [000] d..1 107.588816: dwc3_ctrl_req: Get Configuration Descriptor(Index = 0, Length = 9)
irq/34-dwc3-1594 [000] d..1 107.589191: dwc3_ctrl_req: Set Configuration(Config = 3)
irq/34-dwc3-1594 [000] d..1 107.589846: dwc3_ctrl_req: Get BOS Descriptor(Index = 0, Length = 5)
irq/34-dwc3-1594 [000] d..1 107.590146: dwc3_ctrl_req: Get BOS Descriptor(Index = 0, Length = 22)
irq/34-dwc3-1594 [000] d..1 107.590546: dwc3_ctrl_req: Get Configuration Descriptor(Index = 0, Length = 9)
irq/34-dwc3-1594 [000] d..1 107.590840: dwc3_ctrl_req: Get Configuration Descriptor(Index = 0, Length = 69)
irq/34-dwc3-1594 [000] d..1 107.591138: dwc3_ctrl_req: Get Configuration Descriptor(Index = 1, Length = 9)
irq/34-dwc3-1594 [000] d..1 107.591541: dwc3_ctrl_req: Get Configuration Descriptor(Index = 1, Length = 32)
irq/34-dwc3-1594 [000] d..1 107.591834: dwc3_ctrl_req: Get Device Descriptor(Index = 0, Length = 18)
irq/34-dwc3-1594 [000] d..1 114.701005: dwc3_ctrl_req: Get Device Descriptor(Index = 0, Length = 18)
irq/34-dwc3-1594 [000] d..1 114.721080: dwc3_ctrl_req: Get Device Descriptor(Index = 0, Length = 18)
irq/34-dwc3-1594 [000] d..1 114.722709: dwc3_ctrl_req: Get Device Descriptor(Index = 0, Length = 18)
irq/34-dwc3-1594 [000] d..1 114.728979: dwc3_ctrl_req: Get Device Descriptor(Index = 0, Length = 18)
irq/34-dwc3-1594 [000] d..1 114.730544: dwc3_ctrl_req: Get Device Qualifier Descriptor(Index = 0, Length = 10)
irq/34-dwc3-1594 [000] d..1 115.776018: dwc3_ctrl_req: Get Configuration Descriptor(Index = 0, Length = 9)
irq/34-dwc3-1594 [000] d..1 115.776760: dwc3_ctrl_req: Set Configuration(Config = 0)
irq/34-dwc3-1594 [000] d..1 115.777676: dwc3_ctrl_req: Get Configuration(Length = 1)
irq/34-dwc3-1594 [000] d..1 115.924797: dwc3_ctrl_req: Get Device Descriptor(Index = 0, Length = 18)
irq/34-dwc3-1594 [000] d..1 115.929025: dwc3_ctrl_req: Get String Descriptor(Index = 0, Length = 500)
irq/34-dwc3-1594 [000] d..1 115.929566: dwc3_ctrl_req: Get String Descriptor(Index = 1, Length = 500)
irq/34-dwc3-1594 [000] d..1 115.930911: dwc3_ctrl_req: Get String Descriptor(Index = 0, Length = 500)
irq/34-dwc3-1594 [000] d..1 115.931528: dwc3_ctrl_req: Get String Descriptor(Index = 2, Length = 500)
irq/34-dwc3-1594 [000] d..1 115.932950: dwc3_ctrl_req: Get String Descriptor(Index = 0, Length = 500)
irq/34-dwc3-1594 [000] d..1 115.933533: dwc3_ctrl_req: Get String Descriptor(Index = 3, Length = 500)
Note that Class and Vendor requests won't be decoded for obvious
reasons. Those will be printed as a raw sequence of bytes.
This patch has been tested against a normal host (both Linux and
Windows) and USB30CV Chapter 9 tests.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'Documentation/driver-api')
0 files changed, 0 insertions, 0 deletions