From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f170.google.com (mail-pl1-f170.google.com [209.85.214.170]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 75B348593E for ; Tue, 5 Mar 2024 13:50:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.170 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709646619; cv=none; b=XVQk96huAZ0rzPBVyxeO4VivqGzs1+dXLcQ/e89i7FZ6djU9gz4Q7yReI0vcgydvzqKAxmT2mt2t9MSyezmTz1hZM5rjKVKZi7WbXV8lqXaVi/P+pFBprApAobAAP8gXGgsDFpHvZo0MgsFEPQi8XWFLVwryDlUnMfN7QWzYSYg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709646619; c=relaxed/simple; bh=w9gNXh54Qso/2C+WmivN8zm571IfgMtep8cXbylA0vQ=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=iC1yrRVoX9pZGaFEooclGuPSQS5mFD8cr8iCYvlkZrmq6ZmWNSn8TeKLFOPaMYpN/YCpVRQ/ZNQ06W3TSJGbWkP78SSDNPdqZvmNSleID2e1QP9dDt9AlrwnNoQ5ZvjT8CCpEvJ4do51X6lIIS7RHOuFIAt9EPGgIdIaKmiw/S4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=gUlOj3WO; arc=none smtp.client-ip=209.85.214.170 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="gUlOj3WO" Received: by mail-pl1-f170.google.com with SMTP id d9443c01a7336-1dcb3e6ff3fso30077635ad.2 for ; Tue, 05 Mar 2024 05:50:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1709646617; x=1710251417; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=p32Ewo2w4OLXjRI6Z8s0YxTTmLnfS7gszq0iPxYq1m0=; b=gUlOj3WOHbcn9MZhaCIgBOWuJ/mVrSu84tiBp5QX80Bifg4lPwVpmnGoIhwtfmwTEW 6Wszw3riiGkByU/VVXYA2pBpnVaKzqnokxfyi6fa6D20guyVGNsTHUysnSq0wGqS16Wx 11sKZF//Z3EkwHISY7a3ITQD5nx442BacCOeyFUQz0NqVQkThuIL/x2yoqYnD7dE+IRF SF+jEWjp6mPzX87OxCoPYWfZmhO2IoA8mBTRWbOBIC3GFZUHLWGpDlUXOKQ+nKqasxXk GoLagZXlmrZqK5VhLF8N2r6W6SJG/cNlFjGkmRYu6N0BK/p0VYqW0VRpp75epI45EcWt VE3g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1709646617; x=1710251417; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=p32Ewo2w4OLXjRI6Z8s0YxTTmLnfS7gszq0iPxYq1m0=; b=nD4GSOLJHzvtuvEE1XIbz/RUdqkRuDRKpEZBGJUhgUsoKPdXqpu6YfJEKhzvnt+Axt 32O8ccJrfl3guVF8mOes0/sof+whoWAHJB5uZrbWFQ/DEuoexf/+1wVywc4vYdlNZHK3 lrQvFj86Ea83wWUyGa+yDbH49J66Y/UVcPnx2KHx+dr3in4eTT5tTNCnDoP41lattoBZ ZGI2CpOQYYxdC3JO9ScSPaXORJiB+6M4gHoGeW2kT2xIqrXGW6jkKsPauPevZUidqB0n ukTnhj2E8YvjZt+FBvujU2dWhSWJuOCaB9M8cO+5c8jXo7T96oaJE+8VSC+07YxWKcNc oFTQ== X-Gm-Message-State: AOJu0YyaDi/ne5fnudIxaExk2TQk2aifl7EoKmolSnA1zug0iRylxhkM tEmxF6Vuj5VXA+sqhTj0e7VHdlns3niLMUsxIrPglW7zi0agEjra9nmk7HhM X-Google-Smtp-Source: AGHT+IGQs7r8iRCLi4OycV9S2pEwdA15+iCO0CRhy4eh6xcDoH7+SPGLPQksw78JBoCaF5i37UYguw== X-Received: by 2002:a17:902:a584:b0:1d9:b751:4752 with SMTP id az4-20020a170902a58400b001d9b7514752mr1641569plb.62.1709646616489; Tue, 05 Mar 2024 05:50:16 -0800 (PST) Received: from [192.168.1.120] ([58.7.175.19]) by smtp.gmail.com with ESMTPSA id l1-20020a170903244100b001dc10796951sm10579989pls.19.2024.03.05.05.50.14 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 05 Mar 2024 05:50:16 -0800 (PST) Message-ID: Date: Tue, 5 Mar 2024 21:50:09 +0800 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Tell linux-usb@vger.kernel.org to add your device to a proper driver To: Johan Hovold Cc: linux-usb@vger.kernel.org References: Content-Language: en-US From: Mike Miller In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Johan, Thank you for getting back, it is appreciated and unexpected. Since sending you the email, a couple of things I have also noticed. 1. If I run the Audrino IDE (on windows), I have to plug in the device after I initiate the upload of the script (it actally tells me to do it). 2. I have to use a specific cable (1 of 3 I have tried). 3. It doesnt create the ACM0 device I was expecting and ttyS0 doesnt work (not ttys4, which are the only 2 options). Anyway, to your particular request, with the "right" cable, the lsusb -v output is mike@MyLinux:~$ lsusb -v Bus 001 Device 022: ID 16d0:0753 MCS Digistump DigiSpark Device Descriptor:   bLength                18   bDescriptorType         1   bcdUSB               1.10   bDeviceClass          255 Vendor Specific Class   bDeviceSubClass         0   bDeviceProtocol         0   bMaxPacketSize0         8   idVendor           0x16d0 MCS   idProduct          0x0753 Digistump DigiSpark   bcdDevice            2.02   iManufacturer           0   iProduct                0   iSerial                 0   bNumConfigurations      1   Configuration Descriptor:     bLength                 9     bDescriptorType         2     wTotalLength       0x0012     bNumInterfaces          1     bConfigurationValue     1     iConfiguration          0     bmAttributes         0x80       (Bus Powered)     MaxPower              100mA     Interface Descriptor:       bLength                 9       bDescriptorType         4       bInterfaceNumber        0       bAlternateSetting       0       bNumEndpoints           0       bInterfaceClass         0       bInterfaceSubClass      0       bInterfaceProtocol      0       iInterface              0 Device Status:     0x0067   Self Powered   Remote Wakeup Enabled   Test Mode   Debug Mode Bus 001 Device 003: ID 0bda:0181 Realtek Semiconductor Corp. USB2.0-CRW Couldn't open device, some information will be missing Device Descriptor:   bLength                18   bDescriptorType         1   bcdUSB               2.00   bDeviceClass            0   bDeviceSubClass         0   bDeviceProtocol         0   bMaxPacketSize0        64   idVendor           0x0bda Realtek Semiconductor Corp.   idProduct          0x0181   bcdDevice           81.97   iManufacturer           1 Generic   iProduct                2 USB2.0-CRW   iSerial                 3 20060413092100000   bNumConfigurations      1   Configuration Descriptor:     bLength                 9     bDescriptorType         2     wTotalLength       0x0020     bNumInterfaces          1     bConfigurationValue     1     iConfiguration          4     bmAttributes         0x80       (Bus Powered)     MaxPower              500mA     Interface Descriptor:       bLength                 9       bDescriptorType         4       bInterfaceNumber        0       bAlternateSetting       0       bNumEndpoints           2       bInterfaceClass         8 Mass Storage       bInterfaceSubClass      6 SCSI       bInterfaceProtocol     80 Bulk-Only       iInterface              5       Endpoint Descriptor:         bLength                 7         bDescriptorType         5         bEndpointAddress     0x01  EP 1 OUT         bmAttributes            2           Transfer Type            Bulk           Synch Type               None           Usage Type               Data         wMaxPacketSize     0x0200  1x 512 bytes         bInterval               0       Endpoint Descriptor:         bLength                 7         bDescriptorType         5         bEndpointAddress     0x82  EP 2 IN         bmAttributes            2           Transfer Type            Bulk           Synch Type               None           Usage Type               Data         wMaxPacketSize     0x0200  1x 512 bytes         bInterval               0 Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Couldn't open device, some information will be missing Device Descriptor:   bLength                18   bDescriptorType         1   bcdUSB               2.00   bDeviceClass            9 Hub   bDeviceSubClass         0   bDeviceProtocol         1 Single TT   bMaxPacketSize0        64   idVendor           0x8087 Intel Corp.   idProduct          0x0024 Integrated Rate Matching Hub   bcdDevice            0.00   iManufacturer           0   iProduct                0   iSerial                 0   bNumConfigurations      1   Configuration Descriptor:     bLength                 9     bDescriptorType         2     wTotalLength       0x0019     bNumInterfaces          1     bConfigurationValue     1     iConfiguration          0     bmAttributes         0xe0       Self Powered       Remote Wakeup     MaxPower                0mA     Interface Descriptor:       bLength                 9       bDescriptorType         4       bInterfaceNumber        0       bAlternateSetting       0       bNumEndpoints           1       bInterfaceClass         9 Hub       bInterfaceSubClass      0       bInterfaceProtocol      0 Full speed (or root) hub       iInterface              0       Endpoint Descriptor:         bLength                 7         bDescriptorType         5         bEndpointAddress     0x81  EP 1 IN         bmAttributes            3           Transfer Type            Interrupt           Synch Type               None           Usage Type               Data         wMaxPacketSize     0x0002  1x 2 bytes         bInterval              12 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Couldn't open device, some information will be missing Device Descriptor:   bLength                18   bDescriptorType         1   bcdUSB               2.00   bDeviceClass            9 Hub   bDeviceSubClass         0   bDeviceProtocol         0 Full speed (or root) hub   bMaxPacketSize0        64   idVendor           0x1d6b Linux Foundation   idProduct          0x0002 2.0 root hub   bcdDevice            6.05   iManufacturer           3 Linux 6.5.0-21-generic ehci_hcd   iProduct                2 EHCI Host Controller   iSerial                 1 0000:00:1d.0   bNumConfigurations      1   Configuration Descriptor:     bLength                 9     bDescriptorType         2     wTotalLength       0x0019     bNumInterfaces          1     bConfigurationValue     1     iConfiguration          0     bmAttributes         0xe0       Self Powered       Remote Wakeup     MaxPower                0mA     Interface Descriptor:       bLength                 9       bDescriptorType         4       bInterfaceNumber        0       bAlternateSetting       0       bNumEndpoints           1       bInterfaceClass         9 Hub       bInterfaceSubClass      0       bInterfaceProtocol      0 Full speed (or root) hub       iInterface              0       Endpoint Descriptor:         bLength                 7         bDescriptorType         5         bEndpointAddress     0x81  EP 1 IN         bmAttributes            3           Transfer Type            Interrupt           Synch Type               None           Usage Type               Data         wMaxPacketSize     0x0004  1x 4 bytes         bInterval              12 Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Couldn't open device, some information will be missing Device Descriptor:   bLength                18   bDescriptorType         1   bcdUSB               3.00   bDeviceClass            9 Hub   bDeviceSubClass         0   bDeviceProtocol         3   bMaxPacketSize0         9   idVendor           0x1d6b Linux Foundation   idProduct          0x0003 3.0 root hub   bcdDevice            6.05   iManufacturer           3 Linux 6.5.0-21-generic xhci-hcd   iProduct                2 xHCI Host Controller   iSerial                 1 0000:02:00.0   bNumConfigurations      1   Configuration Descriptor:     bLength                 9     bDescriptorType         2     wTotalLength       0x001f     bNumInterfaces          1     bConfigurationValue     1     iConfiguration          0     bmAttributes         0xe0       Self Powered       Remote Wakeup     MaxPower                0mA     Interface Descriptor:       bLength                 9       bDescriptorType         4       bInterfaceNumber        0       bAlternateSetting       0       bNumEndpoints           1       bInterfaceClass         9 Hub       bInterfaceSubClass      0       bInterfaceProtocol      0 Full speed (or root) hub       iInterface              0       Endpoint Descriptor:         bLength                 7         bDescriptorType         5         bEndpointAddress     0x81  EP 1 IN         bmAttributes            3           Transfer Type            Interrupt           Synch Type               None           Usage Type               Data         wMaxPacketSize     0x0004  1x 4 bytes         bInterval              12         bMaxBurst               0 Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Couldn't open device, some information will be missing Device Descriptor:   bLength                18   bDescriptorType         1   bcdUSB               2.00   bDeviceClass            9 Hub   bDeviceSubClass         0   bDeviceProtocol         1 Single TT   bMaxPacketSize0        64   idVendor           0x1d6b Linux Foundation   idProduct          0x0002 2.0 root hub   bcdDevice            6.05   iManufacturer           3 Linux 6.5.0-21-generic xhci-hcd   iProduct                2 xHCI Host Controller   iSerial                 1 0000:02:00.0   bNumConfigurations      1   Configuration Descriptor:     bLength                 9     bDescriptorType         2     wTotalLength       0x0019     bNumInterfaces          1     bConfigurationValue     1     iConfiguration          0     bmAttributes         0xe0       Self Powered       Remote Wakeup     MaxPower                0mA     Interface Descriptor:       bLength                 9       bDescriptorType         4       bInterfaceNumber        0       bAlternateSetting       0       bNumEndpoints           1       bInterfaceClass         9 Hub       bInterfaceSubClass      0       bInterfaceProtocol      0 Full speed (or root) hub       iInterface              0       Endpoint Descriptor:         bLength                 7         bDescriptorType         5         bEndpointAddress     0x81  EP 1 IN         bmAttributes            3           Transfer Type            Interrupt           Synch Type               None           Usage Type               Data         wMaxPacketSize     0x0004  1x 4 bytes         bInterval              12 Bus 002 Device 006: ID 2357:0108 TP-Link TL-WN822N Version 4 RTL8192EU Couldn't open device, some information will be missing Device Descriptor:   bLength                18   bDescriptorType         1   bcdUSB               2.10   bDeviceClass            0   bDeviceSubClass         0   bDeviceProtocol         0   bMaxPacketSize0        64   idVendor           0x2357 TP-Link   idProduct          0x0108 TL-WN822N Version 4 RTL8192EU   bcdDevice            2.00   iManufacturer           1 Realtek   iProduct                2 802.11n NIC   iSerial                 3 00e04c000001   bNumConfigurations      1   Configuration Descriptor:     bLength                 9     bDescriptorType         2     wTotalLength       0x0035     bNumInterfaces          1     bConfigurationValue     1     iConfiguration          0     bmAttributes         0xe0       Self Powered       Remote Wakeup     MaxPower              500mA     Interface Descriptor:       bLength                 9       bDescriptorType         4       bInterfaceNumber        0       bAlternateSetting       0       bNumEndpoints           5       bInterfaceClass       255 Vendor Specific Class       bInterfaceSubClass    255 Vendor Specific Subclass       bInterfaceProtocol    255 Vendor Specific Protocol       iInterface              2       Endpoint Descriptor:         bLength                 7         bDescriptorType         5         bEndpointAddress     0x84  EP 4 IN         bmAttributes            2           Transfer Type            Bulk           Synch Type               None           Usage Type               Data         wMaxPacketSize     0x0200  1x 512 bytes         bInterval               0       Endpoint Descriptor:         bLength                 7         bDescriptorType         5         bEndpointAddress     0x05  EP 5 OUT         bmAttributes            2           Transfer Type            Bulk           Synch Type               None           Usage Type               Data         wMaxPacketSize     0x0200  1x 512 bytes         bInterval               0       Endpoint Descriptor:         bLength                 7         bDescriptorType         5         bEndpointAddress     0x06  EP 6 OUT         bmAttributes            2           Transfer Type            Bulk           Synch Type               None           Usage Type               Data         wMaxPacketSize     0x0200  1x 512 bytes         bInterval               0       Endpoint Descriptor:         bLength                 7         bDescriptorType         5         bEndpointAddress     0x87  EP 7 IN         bmAttributes            3           Transfer Type            Interrupt           Synch Type               None           Usage Type               Data         wMaxPacketSize     0x0040  1x 64 bytes         bInterval               3       Endpoint Descriptor:         bLength                 7         bDescriptorType         5         bEndpointAddress     0x08  EP 8 OUT         bmAttributes            2           Transfer Type            Bulk           Synch Type               None           Usage Type               Data         wMaxPacketSize     0x0200  1x 512 bytes         bInterval               0 Bus 002 Device 005: ID 0409:0238 NEC Corp. Couldn't open device, some information will be missing Device Descriptor:   bLength                18   bDescriptorType         1   bcdUSB               2.00   bDeviceClass            9 Hub   bDeviceSubClass         0   bDeviceProtocol         2 TT per port   bMaxPacketSize0        64   idVendor           0x0409 NEC Corp.   idProduct          0x0238   bcdDevice            1.00   iManufacturer           0   iProduct                0   iSerial                 0   bNumConfigurations      1   Configuration Descriptor:     bLength                 9     bDescriptorType         2     wTotalLength       0x0029     bNumInterfaces          1     bConfigurationValue     1     iConfiguration          0     bmAttributes         0xe0       Self Powered       Remote Wakeup     MaxPower                2mA     Interface Descriptor:       bLength                 9       bDescriptorType         4       bInterfaceNumber        0       bAlternateSetting       0       bNumEndpoints           1       bInterfaceClass         9 Hub       bInterfaceSubClass      0       bInterfaceProtocol      1 Single TT       iInterface              0       Endpoint Descriptor:         bLength                 7         bDescriptorType         5         bEndpointAddress     0x81  EP 1 IN         bmAttributes            3           Transfer Type            Interrupt           Synch Type               None           Usage Type               Data         wMaxPacketSize     0x0001  1x 1 bytes         bInterval              12     Interface Descriptor:       bLength                 9       bDescriptorType         4       bInterfaceNumber        0       bAlternateSetting       1       bNumEndpoints           1       bInterfaceClass         9 Hub       bInterfaceSubClass      0       bInterfaceProtocol      2 TT per port       iInterface              0       Endpoint Descriptor:         bLength                 7         bDescriptorType         5         bEndpointAddress     0x81  EP 1 IN         bmAttributes            3           Transfer Type            Interrupt           Synch Type               None           Usage Type               Data         wMaxPacketSize     0x0001  1x 1 bytes         bInterval              12 Bus 002 Device 004: ID 046d:c05b Logitech, Inc. M-U0004 810-001317 [B110 Optical USB Mouse] Couldn't open device, some information will be missing Device Descriptor:   bLength                18   bDescriptorType         1   bcdUSB               2.00   bDeviceClass            0   bDeviceSubClass         0   bDeviceProtocol         0   bMaxPacketSize0         8   idVendor           0x046d Logitech, Inc.   idProduct          0xc05b M-U0004 810-001317 [B110 Optical USB Mouse]   bcdDevice           54.00   iManufacturer           1 Logitech   iProduct                2 USB Optical Mouse   iSerial                 0   bNumConfigurations      1   Configuration Descriptor:     bLength                 9     bDescriptorType         2     wTotalLength       0x0022     bNumInterfaces          1     bConfigurationValue     1     iConfiguration          0     bmAttributes         0xa0       (Bus Powered)       Remote Wakeup     MaxPower               98mA     Interface Descriptor:       bLength                 9       bDescriptorType         4       bInterfaceNumber        0       bAlternateSetting       0       bNumEndpoints           1       bInterfaceClass         3 Human Interface Device       bInterfaceSubClass      1 Boot Interface Subclass       bInterfaceProtocol      2 Mouse       iInterface              0         HID Device Descriptor:           bLength                 9           bDescriptorType        33           bcdHID               1.11           bCountryCode            0 Not supported           bNumDescriptors         1           bDescriptorType        34 Report           wDescriptorLength      67          Report Descriptors:            ** UNAVAILABLE **       Endpoint Descriptor:         bLength                 7         bDescriptorType         5         bEndpointAddress     0x81  EP 1 IN         bmAttributes            3           Transfer Type            Interrupt           Synch Type               None           Usage Type               Data         wMaxPacketSize     0x0006  1x 6 bytes         bInterval              10 Bus 002 Device 003: ID 413c:2107 Dell Computer Corp. KB212-B Quiet Key Keyboard Couldn't open device, some information will be missing Device Descriptor:   bLength                18   bDescriptorType         1   bcdUSB               1.10   bDeviceClass            0   bDeviceSubClass         0   bDeviceProtocol         0   bMaxPacketSize0         8   idVendor           0x413c Dell Computer Corp.   idProduct          0x2107 KB212-B Quiet Key Keyboard   bcdDevice            1.78   iManufacturer           1 DELL   iProduct                2 Dell USB Entry Keyboard   iSerial                 0   bNumConfigurations      1   Configuration Descriptor:     bLength                 9     bDescriptorType         2     wTotalLength       0x0022     bNumInterfaces          1     bConfigurationValue     1     iConfiguration          0     bmAttributes         0xa0       (Bus Powered)       Remote Wakeup     MaxPower              100mA     Interface Descriptor:       bLength                 9       bDescriptorType         4       bInterfaceNumber        0       bAlternateSetting       0       bNumEndpoints           1       bInterfaceClass         3 Human Interface Device       bInterfaceSubClass      1 Boot Interface Subclass       bInterfaceProtocol      1 Keyboard       iInterface              0         HID Device Descriptor:           bLength                 9           bDescriptorType        33           bcdHID               1.10           bCountryCode            0 Not supported           bNumDescriptors         1           bDescriptorType        34 Report           wDescriptorLength      65          Report Descriptors:            ** UNAVAILABLE **       Endpoint Descriptor:         bLength                 7         bDescriptorType         5         bEndpointAddress     0x81  EP 1 IN         bmAttributes            3           Transfer Type            Interrupt           Synch Type               None           Usage Type               Data         wMaxPacketSize     0x0008  1x 8 bytes         bInterval              10 Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Couldn't open device, some information will be missing Device Descriptor:   bLength                18   bDescriptorType         1   bcdUSB               2.00   bDeviceClass            9 Hub   bDeviceSubClass         0   bDeviceProtocol         1 Single TT   bMaxPacketSize0        64   idVendor           0x8087 Intel Corp.   idProduct          0x0024 Integrated Rate Matching Hub   bcdDevice            0.00   iManufacturer           0   iProduct                0   iSerial                 0   bNumConfigurations      1   Configuration Descriptor:     bLength                 9     bDescriptorType         2     wTotalLength       0x0019     bNumInterfaces          1     bConfigurationValue     1     iConfiguration          0     bmAttributes         0xe0       Self Powered       Remote Wakeup     MaxPower                0mA     Interface Descriptor:       bLength                 9       bDescriptorType         4       bInterfaceNumber        0       bAlternateSetting       0       bNumEndpoints           1       bInterfaceClass         9 Hub       bInterfaceSubClass      0       bInterfaceProtocol      0 Full speed (or root) hub       iInterface              0       Endpoint Descriptor:         bLength                 7         bDescriptorType         5         bEndpointAddress     0x81  EP 1 IN         bmAttributes            3           Transfer Type            Interrupt           Synch Type               None           Usage Type               Data         wMaxPacketSize     0x0001  1x 1 bytes         bInterval              12 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Couldn't open device, some information will be missing Device Descriptor:   bLength                18   bDescriptorType         1   bcdUSB               2.00   bDeviceClass            9 Hub   bDeviceSubClass         0   bDeviceProtocol         0 Full speed (or root) hub   bMaxPacketSize0        64   idVendor           0x1d6b Linux Foundation   idProduct          0x0002 2.0 root hub   bcdDevice            6.05   iManufacturer           3 Linux 6.5.0-21-generic ehci_hcd   iProduct                2 EHCI Host Controller   iSerial                 1 0000:00:1a.0   bNumConfigurations      1   Configuration Descriptor:     bLength                 9     bDescriptorType         2     wTotalLength       0x0019     bNumInterfaces          1     bConfigurationValue     1     iConfiguration          0     bmAttributes         0xe0       Self Powered       Remote Wakeup     MaxPower                0mA     Interface Descriptor:       bLength                 9       bDescriptorType         4       bInterfaceNumber        0       bAlternateSetting       0       bNumEndpoints           1       bInterfaceClass         9 Hub       bInterfaceSubClass      0       bInterfaceProtocol      0 Full speed (or root) hub       iInterface              0       Endpoint Descriptor:         bLength                 7         bDescriptorType         5         bEndpointAddress     0x81  EP 1 IN         bmAttributes            3           Transfer Type            Interrupt           Synch Type               None           Usage Type               Data         wMaxPacketSize     0x0004  1x 4 bytes         bInterval              12 Cheers Mike On 4/3/24 18:21, Johan Hovold wrote: > On Wed, Feb 07, 2024 at 08:48:12PM +0800, Mike Miller wrote: >> I am only doing this because dmesg has told me to :). > Thanks for the report. > >> I am struggling to get a cheap arse Chinese knock-off Arduino Nano >> working on my >> >> Linux MyLinux 6.5.0-15-generic #15~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC >> Fri Jan 12 18:54:30 UTC 2 x86_64 x86_64 x86_64 GNU/Linux >> >> and I get the message >> >> [ 2840.099780] usb 2-1.2: new low-speed USB device number 8 using ehci-pci >> [ 2840.210523] usb 2-1.2: New USB device found, idVendor=16d0, >> idProduct=0753, bcdDevice= 2.02 >> [ 2840.210537] usb 2-1.2: New USB device strings: Mfr=0, Product=0, >> SerialNumber=0 >> [ 2840.211335] usbserial_generic 2-1.2:1.0: The "generic" usb-serial >> driver is only for testing and one-off prototypes. >> [ 2840.211338] usbserial_generic 2-1.2:1.0: Tell >> linux-usb@vger.kernel.org to add your device to a proper driver. >> [ 2840.211340] usbserial_generic 2-1.2:1.0: device has no bulk endpoints > Hmm. Without bulk endpoints you shouldn't be able to actually use the > device with the generic driver. > >> This something you really can address? > Can you please post the output of lsusb -v for this device? > > Johan