Re: [PATCH] CDC-ACM : Add Icom PMR F3400 support (0c26:0020)

[Greg KH <gregkh@linuxfoundation.org>]

On Fri, Aug 19, 2022 at 10:17:02AM +0200, Thierry GUIBERT wrote:
> Supports for ICOM F3400 and ICOM F4400 PMR radios in CDC-ACM driver
> enabling the AT serial port.
> The Vendor Id is 0x0C26
> The Product ID is 0x0020
> 
> Output of lsusb :
> Bus 001 Device 009: ID 0c26:0020 Prolific Technology Inc. ICOM Radio
> Couldn't open device, some information will be missing
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.00
>   bDeviceClass            2 Communications
>   bDeviceSubClass         0
>   bDeviceProtocol         0
>   bMaxPacketSize0        64
>   idVendor           0x0c26 Prolific Technology Inc.
>   idProduct          0x0020
>   bcdDevice            0.00
>   iManufacturer           1 ICOM Inc.
>   iProduct                2 ICOM Radio
>   iSerial                 3 *obfuscated*
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength       0x0030
>     bNumInterfaces          2
>     bConfigurationValue     1
>     iConfiguration          0
>     bmAttributes         0xc0
>       Self Powered
>     MaxPower                0mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         2 Communications
>       bInterfaceSubClass      2 Abstract (modem)
>       bInterfaceProtocol      1 AT-commands (v.25ter)
>       iInterface              0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x83  EP 3 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0040  1x 64 bytes
>         bInterval              12
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        1
>       bAlternateSetting       0
>       bNumEndpoints           2
>       bInterfaceClass        10 CDC Data
>       bInterfaceSubClass      0
>       bInterfaceProtocol      0
>       iInterface              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
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x02  EP 2 OUT
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
> 
> Signed-off-by: Thierry GUIBERT <thierry.guibert@croix-rouge.fr>
> ---
>  drivers/usb/class/cdc-acm.c | 3 +++
>  1 file changed, 3 insertions(+)

Note, this is the second version of this patch, so it should have had
"v2" in the subject area, and below the --- line a description of what
changed from the previous one, so we can have some context here.

The kernel documentation on submitting patches explains how to do this
for your next time, for now, I'll take this as-is, thanks.

greg k-h