On 3/14/19 5:19 PM, Ismael Luceno Cortes wrote:
> On 14/Mar/2019 16:09, Marek Vasut wrote:
>> On 3/14/19 1:57 PM, Ismael Luceno Cortes wrote:
>>> On 14/Mar/2019 12:55, Marek Vasut wrote:
>>>> On 3/14/19 12:44 PM, Ismael Luceno Cortes wrote:
>>>>> On 18/Feb/2019 09:23, Ismael Luceno Cortes wrote:
>>>>>> Signed-off-by: Ismael Luceno <ismael.luc...@silicon-gears.com>
>>>>>> ---
>>>>>> drivers/usb/host/usb-uclass.c | 2 +-
>>>>>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>>>>>
>>>>>> diff --git a/drivers/usb/host/usb-uclass.c
>>>>>> b/drivers/usb/host/usb-uclass.c
>>>>>> index 611ea97a72..0575f5393b 100644
>>>>>> --- a/drivers/usb/host/usb-uclass.c
>>>>>> +++ b/drivers/usb/host/usb-uclass.c
>>>>>> @@ -255,7 +255,7 @@ int usb_init(void)
>>>>>>
>>>>>> uclass_foreach_dev(bus, uc) {
>>>>>> /* init low_level USB */
>>>>>> - printf("USB%d: ", count);
>>>>>> + printf("USB%d(%s): ", count, bus->name);
>>>>>> count++;
>>>>>>
>>>>>> #ifdef CONFIG_SANDBOX
>>>>>> --
>>>>>> 2.19.1
>>>>>
>>>>> Ping.
>>>>
>>>> What is this patch doing ? The commit description doesn't explain
>>>> anything about it.
>>>
>>> It prints the host device name. I'm not sure the count is at all useful
>>> given there's a name...
>>
>> If you could share the log before and after to better illustrate the
>> difference, that'd be nice.
>
> unpatched:
>
> => usb reset
> resetting USB...
> USB0: USB EHCI 1.10
> scanning bus 0 for devices... 2 USB Device(s) found
> scanning usb for storage devices... 1 Storage Device(s) found
>
> patched:
>
> => usb reset
> resetting USB...
> USB0(usb@ee080100): USB EHCI 1.10
> scanning bus 0 for devices... 2 USB Device(s) found
> scanning usb for storage devices... 1 Storage Device(s) found
>
>> However, shouldn't the same approach be applied to 'usb tree' subcommand
>> and possibly others ?
>
> The number shown during usb scanning is not used nor saved anywhere
> else, so seems pretty useless and a special case.
What about usb part ? That one uses the number somehow I think ?
> OTOH the number used in the usb tree command is taken from struct
> usb_device, and is used for lookups.
Maybe it's time to clean that numbering mess up a bit , and make it
consistent ?
> The name is only relevant to non-discoverable devices at the moment.
>
> dm tree shows:
> ... ehci_generic | |-- usb@ee080100
> ... usb_hub | | `-- usb_hub
> ... usb_mass_storage | | `-- usb_mass_storage
> ... usb_storage_blk | | `-- usb_mass_storage.lun0
>
--
Best regards,
Marek Vasut
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