Re: [PATCH 2/2] gnss: usb: add support for Sierra Wireless XM1210

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On Mon, Dec 20, 2021 at 6:19 AM Johan Hovold <johan@xxxxxxxxxx> wrote:
>
> Add support for the USB interface of the Sierra Wireless XM1210
> receiver.
>
> Note that the device only supports NMEA.
>
> Bus 002 Device 003: ID 1199:b000 Sierra Wireless, Inc. Sierra Wireless_GNSS
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               1.00
>   bDeviceClass            0
>   bDeviceSubClass         0
>   bDeviceProtocol         0
>   bMaxPacketSize0        64
>   idVendor           0x1199 Sierra Wireless, Inc.
>   idProduct          0xb000
>   bcdDevice            0.01
>   iManufacturer           1 Sierra-wireless
>   iProduct                2 Sierra Wireless_GNSS
>   iSerial                 0
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength       0x0020
>     bNumInterfaces          1
>     bConfigurationValue     1
>     iConfiguration          0
>     bmAttributes         0xc0
>       Self Powered
>     MaxPower               50mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           2
>       bInterfaceClass         0
>       bInterfaceSubClass      0
>       bInterfaceProtocol      0
>       iInterface              0
>       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             255
>       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             255
> can't get debug descriptor: Resource temporarily unavailable
> Device Status:     0x0001
>   Self Powered
>
> Reported-by: Marc Ferland <ferlandm@xxxxxxxxx>
> Link: https://lore.kernel.org/r/20211027200223.72701-1-ferlandm@xxxxxxxxx
> Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
> ---
>  drivers/gnss/usb.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gnss/usb.c b/drivers/gnss/usb.c
> index 5c0251034def..792235a688ea 100644
> --- a/drivers/gnss/usb.c
> +++ b/drivers/gnss/usb.c
> @@ -17,6 +17,7 @@
>  #define GNSS_USB_WRITE_TIMEOUT 1000
>
>  static const struct usb_device_id gnss_usb_id_table[] = {
> +       { USB_DEVICE(0x1199, 0xb000) },         /* Sierra Wireless XM1210 */
>         { }
>  };
>  MODULE_DEVICE_TABLE(usb, gnss_usb_id_table);
> --
> 2.32.0
>
Thank you Johan! Much appreciated!

With your patches applied on my platform (featuring the XM1210) , I get:

# lsmod | grep gnss
gnss_usb 16384 0 - Live 0xffffffffc011b000
gnss 16384 3 gnss_usb, Live 0xffffffffc0082000

# dmesg | grep gnss
gnss: GNSS driver registered with major 244
usbcore: registered new interface driver gnss-usb

# ls -l /dev/gnss0
crw-rw----    1 root     root      244,   0 Apr  8 08:39 /dev/gnss0

I also tested with gpsd and everything is working as expected, hence:

Tested-by: Marc Ferland <ferlandm@xxxxxxxxx>

Marc



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