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From: Lars Melin <larsm17@gmail.com>
To: Chris Ruehl <chris.ruehl@gtsys.com.hk>,
	USB list <linux-usb@vger.kernel.org>
Cc: Oliver Neukum <oneukum@suse.com>
Subject: Re: serial: usb: cdc-acm: OMRON B5L ToF, device probe failed
Date: Mon, 20 Jun 2022 10:35:07 +0700	[thread overview]
Message-ID: <1af7ff05-8558-9162-a0cd-ac140ddaf2e1@gmail.com> (raw)
In-Reply-To: <fc9986a6-0b11-d949-2196-1ad35d3f4d98@gtsys.com.hk>

On 6/20/2022 09:44, Chris Ruehl wrote:
> Enabled the debugfs and checked /sys/kernel/debug/usb/devices for the B5L
> 
> T:  Bus=02 Lev=03 Prnt=04 Port=01 Cnt=01 Dev#= 17 Spd=480  MxCh= 0
> D:  Ver= 2.00 Cls=02(comm.) Sub=02 Prot=00 MxPS=64 #Cfgs=  1
> P:  Vendor=0590 ProdID=00ca Rev= 2.00
> S:  Manufacturer=OMRON Corporation
> S:  Product=OMRON B5L-001011
> S:  SerialNumber=010000319A1
> C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=  4mA
> I:* If#= 0 Alt= 0 #EPs= 4 Cls=02(comm.) Sub=02 Prot=00 Driver=(none)
> E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=03(O) Atr=03(Int.) MxPS=  64 Ivl=4096ms
> E:  Ad=84(I) Atr=03(Int.) MxPS=  64 Ivl=4096ms
> 
> Driver is not assigned.


There is nothing CDC-ACM in that interface except for the interface 
attributes, the interface lacks everything else needed for it to be CDC-ACM.
Check if Omron has an updated firmware fixing the problems or if they 
have their own proprietary driver for the device.


/Lars

  reply	other threads:[~2022-06-20  3:35 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-17  4:11 serial: usb: cdc-acm: OMRON B5L ToF, device probe failed Chris Ruehl
2022-06-20  2:44 ` Chris Ruehl
2022-06-20  3:35   ` Lars Melin [this message]
2022-06-20  6:20     ` Chris Ruehl
2022-06-21  0:38       ` michael.lee
2022-06-21  7:16         ` Greg KH
2022-06-21 10:09         ` Oliver Neukum
2022-06-21 10:44           ` Chris Ruehl
2022-06-23  2:26           ` Chris Ruehl
2022-06-23  8:28             ` Oliver Neukum
2022-06-23  8:44               ` Chris Ruehl
2022-06-23  8:55                 ` Chris Ruehl
2022-06-23  9:39                   ` Oliver Neukum
2022-06-25  2:35                     ` Chris Ruehl
2022-06-25  2:42                       ` Chris Ruehl
2022-06-25  7:32                       ` Greg KH
2022-06-25  7:46                         ` Chris Ruehl
2022-07-20 11:12                   ` Oliver Neukum
2022-07-20 16:24     ` Oliver Neukum
  -- strict thread matches above, loose matches on Subject: below --
2022-06-15  7:25 Chris Ruehl

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