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Message-ID: <20201201082438.515bb23f@monster.powergraphx.local>
Date: Tue, 1 Dec 2020 08:24:38 +0100
From: Wilken Gottwalt <wilken.gottwalt@...teo.net>
To: Backlund Thomas <tmb@....fi>
Cc: Jonas Malaco <jonas@...tocubo.io>, <linux-kernel@...r.kernel.org>,
Jean Delvare <jdelvare@...e.com>,
Guenter Roeck <linux@...ck-us.net>,
Jonathan Corbet <corbet@....net>, <linux-hwmon@...r.kernel.org>
Subject: Re: [PATCH] hwmon: corsair-psu: update supported devices
On Mon, 30 Nov 2020 18:25:30 +0200
Backlund Thomas <tmb@....fi> wrote:
> Den 30.11.2020 kl. 16:49, skrev Wilken Gottwalt:
> > On Mon, 30 Nov 2020 14:43:44 +0200
> > Thomas Backlund <tmb@....fi> wrote:
> >
> >> Den 28.11.2020 kl. 12:35, skrev Wilken Gottwalt:
> >>> On Sat, 28 Nov 2020 02:37:38 -0300
> >>> Jonas Malaco <jonas@...tocubo.io> wrote:
> >>>
> >>>> On Thu, Nov 26, 2020 at 8:43 AM Wilken Gottwalt
> >>>> <wilken.gottwalt@...teo.net> wrote:
> >>>>> Adds support for another Corsair PSUs series: AX760i, AX860i, AX1200i,
> >>>>> AX1500i and AX1600i. The first 3 power supplies are supported through
> >>>>> the Corsair Link USB Dongle which is some kind of USB/Serial/TTL
> >>>>> converter especially made for the COM ports of these power supplies.
> >>>>> There are 3 known revisions of these adapters. The AX1500i power supply
> >>>>> has revision 3 built into the case and AX1600i is the only one in that
> >>>>> series, which has an unique usb hid id like the RM/RX series.
> >>>> Can I ask what AXi power supplies were tested?
> >>>>
> >>>> I ask because, based on the user-space implementations I am aware of,
> >>>> the AXi dongle protocol appears to be different from the RMi/HXi series.
> >>> I was not able to test this against the AX power supplies, they are really
> >>> hard to find (and are far to expensive). But I went through all these tools
> >>> and stuck to the most common commands, which all 3 series support. Not every
> >>> series supports all commands (there also seem to be different firmwares in
> >>> the micro-conrollers). But this is fine, some sensors will show up as N/A.
> >>> Even my HX850i does not support all commands covered in this driver.
> >>>
> >> What kind of tests do you want / need ?
> >>
> >> I have an AX860i here.
> > Oh nice. Lets start with an usb info dump. Can you give me the full dump of
> > lsusb -vd <device> of the Corsair USB dongle?
>
> $ lsusb -vd 1b1c:1c00
>
> Bus 011 Device 005: ID 1b1c:1c00 Corsair Controller for Corsair Link
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 1.10
> bDeviceClass 0
> bDeviceSubClass 0
> bDeviceProtocol 0
> bMaxPacketSize0 64
> idVendor 0x1b1c Corsair
> idProduct 0x1c00 Controller for Corsair Link
> bcdDevice 1.00
> iManufacturer 1 Silicon Labs
> iProduct 2 Corsair Link TM USB Dongle
> iSerial 3 R7480347
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 0x0020
> bNumInterfaces 1
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0x80
> (Bus Powered)
> MaxPower 100mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 2
> bInterfaceClass 255 Vendor Specific Class
> bInterfaceSubClass 0
> bInterfaceProtocol 0
> iInterface 2 Corsair Link TM USB Dongle
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 2
> Transfer Type Bulk
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0040 1x 64 bytes
> bInterval 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x01 EP 1 OUT
> bmAttributes 2
> Transfer Type Bulk
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0040 1x 64 bytes
> bInterval 0
> can't get debug descriptor: Resource temporarily unavailable
> Device Status: 0x0000
> (Bus Powered)
Thank you. Hmm yeah, this dongle has no usb hid part. So this driver will not
work with this dongle for sure. I already have an idea how to support all 3
series, though it involves a lot of testing. I would provide a github repo
with tools and test kernel modules if you are interested. But I don't know
yet how long it will take, I work on other stuff which has a higher prio.
greetings,
Wilken
> --
>
> Thomas
>
>
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