[PATCH 1/1] cmd: improve coninfo output formatting

Heinrich Schuchardt heinrich.schuchardt at canonical.com
Sun Jan 29 21:58:18 CET 2023



On 1/28/23 23:01, Simon Glass wrote:
> On Fri, 27 Jan 2023 at 17:12, Heinrich Schuchardt
> <heinrich.schuchardt at canonical.com> wrote:
>>
>> Device name are typically longer than 8 characters. This leads to ragged
>> output.
>> Only the I and O bit of the device flags are of interest for the user.
>> Writing a hexadecimal number is just confusing.
>>
>> Before the patch the output looked like this:
>>
>>      => coninfo
>>      List of available devices:
>>      pl011 at 9000000 00000007 IO stdin stdout stderr
>>      serial   00000003 IO
>>      usbkbd   00000001 I.
>>
>> With the patch the output looks like this:
>>
>>      => coninfo
>>      List of available devices
>>      |-- pl011 at 9000000 (IO)
>>      |   |-- stdin
>>      |   |-- stdout
>>      |   |-- stderr
>>      |-- serial (IO)
>>      |-- usbkbd (I)
>>
>> Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>
>> ---
>>   cmd/console.c | 14 ++++++--------
>>   1 file changed, 6 insertions(+), 8 deletions(-)
> 
> Reviewed-by: Simon Glass <sjg at chromium.org>
> 
> Is there a help update for this?

The online help does not need a change.

But a man-page in the HTML documentation with an example showing 
reassignment of stdios would be helpful.

In drv_system_init() we create a stdio device called "serial". Do we 
need this dummy device if CONFIG_$(SPL_TPL_)DM_SERIAL=y? I find this 
device duplicating the default serial device confusing.

Best regards

Heinrich


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