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SubjectRe: [PATCH 2/2] gnss: usb: add support for Sierra Wireless XM1210
On Mon, Dec 20, 2021 at 6:19 AM Johan Hovold <johan@kernel.org> 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@amotus.ca>
> Link: https://lore.kernel.org/r/20211027200223.72701-1-ferlandm@amotus.ca
> Signed-off-by: Johan Hovold <johan@kernel.org>
> ---
> 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@amotus.ca>

Marc

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