Joe wrote:
> Hi all!
>
> I'm a simple linux user, not a developer, but I just
> added a new record to source of "option" usb serial
> module (option.c) to add support for a usb internet
> dongle: Olivetti Olicard-300.
>
> Hope this is the right place to submit my changes so
> that kernel developers can apply to next versions of
> "option" driver.
>
> Here we have usb-devices output:
> ----------------------------------------
> # usb-devices |grep -B2 -A11 2020.*4000
> T: Bus=01 Lev=02 Prnt=04 Port=00 Cnt=01 Dev#= 10 Spd=480 MxCh= 0
> D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1
> P: Vendor=2020 ProdID=4000 Rev=03.00
> S: Manufacturer=Network Connect
> S: Product=MT6225
> C: #Ifs= 7 Cfg#= 1 Atr=a0 MxPwr=500mA
> I: If#= 0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0e Prot=00 Driver=cdc_mbim
> I: If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
> I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=02 Prot=01 Driver=option
> I: If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> I: If#= 4 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> I: If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> I: If#= 6 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
> -------------------------------------------------------------------------
>
> As you can see it has 7 interfaces...
> Ifs: 2,3,4,5 are related to HSPA modem functions. We
> can obtain this info also by looking to Windows verbose
> description of the interfaces and is taken from the
> windows driver pack for the dongle:
> ----------------------------------------------
> MI_00 Network Connect Mobile Broadband Device
> MI_01 Network Connect Mobile Broadband Device
> MI_02 Network Connect HSPA Plus Modem
> MI_03 Network Connect HSPA Plus Application Interface
> MI_04 Network Connect HSPA Plus Speech Port
> MI_05 Network Connect HSPA Plus Debug Port
> MI_06 USB Mass Storage Device
> ------------------------------
>
> After talking about this dongle with usb_modeswitch
> developers seems all these interfaces having Class
> "ff" (vendor defined) has to be proper bound exactly
> by "option" module. So I edited "opition.c" source as
> follow:
> ----------------------------------------------
> $ grep OLICARD300 drivers/usb/serial/option.c
> { USB_DEVICE_INTERFACE_CLASS(0x2020, 0x4000, 0xff) }, /*
> { OLICARD300 -
> MT6225 */
>
----------------------------------------------------------------------------------------
>
> Hope the last line will not be cutted by your mail
> client due to its leinght...
>
> Anyway I tested this new version of option module
> and seems to work properly: when I plug the dongle
> in usb_modeswitch changes product id from "0002" to
> "4000".
> Then option module binds right interfaces only, letting
> cdc_mbim and usb-storage manage theirs properly.
>
> I've also created a patch as follows:
> -------------------------------------
> $ diff -up linux/drivers/usb/serial/option.c{.orig,} > \
> olivetti-olicard300-2020_4000.patch
>
> $ cat olivetti-olicard300-2020_4000.patch
> --- linux/drivers/usb/serial/option.c.orig 2015-06-05
> 00:27:28.000000000 +0200
> +++ linux/drivers/usb/serial/option.c 2015-06-05 00:37:08.522933592
> +0200 @@ -1678,6 +1678,7 @@ static const struct usb_device_id option
> .driver_info = (kernel_ulong_t)&net_intf6_blacklist },
> { USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD500),
> .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
> + { USB_DEVICE_INTERFACE_CLASS(0x2020, 0x4000, 0xff) }, /*
> OLICARD300 - MT6225 */
> { USB_DEVICE(CELOT_VENDOR_ID, CELOT_PRODUCT_CT680M) }, /* CT-650
> { CDMA
> 450 1xEVDO modem */
> { USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID,
> SAMSUNG_PRODUCT_GT_B3730, USB_CLASS_CDC_DATA, 0x00, 0x00) }, /* Samsung
> GT- B3730 LTE USB modem.*/
> { USB_DEVICE(YUGA_VENDOR_ID, YUGA_PRODUCT_CEM600) },
> -----------------------------------------------------------
>
> I'll attach it to this message, hope it is a good
> choice..
>
> Any comments are greatly appreciated, it's my first
> patch request! :)
> Bye.
Is my message placed in right list to obtain support?
Could you confirm?
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