On 11 October 2017 at 03:36, Johan Hovold <johan@xxxxxxxxxx> wrote:
> On Tue, Oct 10, 2017 at 10:22:19AM +0200, Marcel Holtmann wrote:
>>
>> What I was wondering the other day is if we need a lsserdev tool or
>> some integration in lshw to be able to debug what serdev devices and
>> ID are present. The lsusb and /sys/kernel/debug/usb/devices is just
>> super powerful and easy when it comes to figuring out what people have
>> in their system. Maybe /sys/kernel/debug/serdev/devices could be
>> helpful as well. Just thinking out loud here.
>
> Yeah, maybe. Since you'd typically only have small number of serdev
> devices (say, max 4), using /sys/bus/serial/devices directly should not
> be too bad meanwhile. Not that much common information we can expose
> either, at least not in comparison to USB. But I'll keep it mind. :)
>
Yes in the interim, if you have 'tree' installed then for example
$ alias lsserdev='tree /sys/bus/serial/devices/*-0'
$ lsserdev
/sys/bus/serial/devices/serial0-0
├── bluetooth
│ └── hci0
│ ├── device -> ../../../serial0-0
│ ├── power
│ │ ├── async
│ │ ├── autosuspend_delay_ms
│ │ ├── control
│ │ ├── runtime_active_kids
│ │ ├── runtime_active_time
│ │ ├── runtime_enabled
│ │ ├── runtime_status
│ │ ├── runtime_suspended_time
│ │ └── runtime_usage
│ ├── rfkill0
│ │ ├── device -> ../../hci0
│ │ ├── hard
│ │ ├── index
│ │ ├── name
│ │ ├── persistent
│ │ ├── power
│ │ │ ├── async
│ │ │ ├── autosuspend_delay_ms
│ │ │ ├── control
│ │ │ ├── runtime_active_kids
│ │ │ ├── runtime_active_time
│ │ │ ├── runtime_enabled
│ │ │ ├── runtime_status
│ │ │ ├── runtime_suspended_time
│ │ │ └── runtime_usage
│ │ ├── soft
│ │ ├── state
│ │ ├── subsystem -> ../../../../../../../../class/rfkill
│ │ ├── type
│ │ └── uevent
│ ├── subsystem -> ../../../../../../../class/bluetooth
│ └── uevent
├── driver -> ../../../../../bus/serial/drivers/hci_uart_bcm
├── firmware_node ->
../../../../LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/8086228A:00/BCM2EA4:00
├── modalias
├── power
│ ├── async
│ ├── autosuspend_delay_ms
│ ├── control
│ ├── runtime_active_kids
│ ├── runtime_active_time
│ ├── runtime_enabled
│ ├── runtime_status
│ ├── runtime_suspended_time
│ └── runtime_usage
├── subsystem -> ../../../../../bus/serial
└── uevent
13 directories, 38 files
$
It is a bit shabby when there is nothing to report
$ lsserdev
/sys/bus/serial/devices/*-0 [error opening dir]
0 directories, 0 files
$
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