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Date: Mon, 18 Dec 2017 17:52:48 +0100
From: Johan Hovold <johan@...nel.org>
To: SZ Lin <sz.lin@...a.com>
Cc: Taiyi Wu <taiyity.wu@...a.com>, Johan Hovold <johan@...nel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
Bjørn Mork <bjorn@...k.no>
Subject: Re: [PATCH] USB: serial: option: adding support for YUGA CLM920-NC5
[ +CC: Bjørn ]
On Fri, Dec 15, 2017 at 06:32:03PM +0800, SZ Lin wrote:
> This patch adds support for YUGA CLM920-NC5 PID 0x9625 USB modem to option
> driver.
Could you specify what each interface is used for here?
> Signed-off-by: Taiyi Wu <taiyity.wu@...a.com>
> Signed-off-by: SZ Lin <sz.lin@...a.com>
Is SZ your legal name?
> ---
>
> Please refer to following lsusb output:
>
> Bus 001 Device 003: ID 05c6:9625 Qualcomm, Inc.
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 2.00
> bDeviceClass 0 (Defined at Interface level)
> bDeviceSubClass 0
> bDeviceProtocol 0
> bMaxPacketSize0 64
> idVendor 0x05c6 Qualcomm, Inc.
> idProduct 0x9625
> bcdDevice 3.18
> iManufacturer 1 Shanghai Yuge
> iProduct 2 YUGA Incorporated
> iSerial 3 0123456789ABCDEF
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 183
> bNumInterfaces 5
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0xa0
> (Bus Powered)
> Remote Wakeup
> MaxPower 500mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 2
> bInterfaceClass 255 Vendor Specific Class
> bInterfaceSubClass 255 Vendor Specific Subclass
> bInterfaceProtocol 255 Vendor Specific Protocol
> 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 0x0200 1x 512 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 0x0200 1x 512 bytes
> bInterval 0
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 0
> bNumEndpoints 2
> bInterfaceClass 255 Vendor Specific Class
> bInterfaceSubClass 66
> bInterfaceProtocol 1
> iInterface 6 ADB Interface
> 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
> 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
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 2
> bAlternateSetting 0
> bNumEndpoints 3
> bInterfaceClass 255 Vendor Specific Class
> bInterfaceSubClass 0
> bInterfaceProtocol 0
> iInterface 0
> ** UNRECOGNIZED: 05 24 00 10 01
> ** UNRECOGNIZED: 05 24 01 00 00
> ** UNRECOGNIZED: 04 24 02 02
> ** UNRECOGNIZED: 05 24 06 00 00
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x84 EP 4 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x000a 1x 10 bytes
> bInterval 9
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x83 EP 3 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 0x03 EP 3 OUT
> bmAttributes 2
> Transfer Type Bulk
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0200 1x 512 bytes
> bInterval 0
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 3
> bAlternateSetting 0
> bNumEndpoints 3
> bInterfaceClass 255 Vendor Specific Class
> bInterfaceSubClass 0
> bInterfaceProtocol 0
> iInterface 0
> ** UNRECOGNIZED: 05 24 00 10 01
> ** UNRECOGNIZED: 05 24 01 00 00
> ** UNRECOGNIZED: 04 24 02 02
> ** UNRECOGNIZED: 05 24 06 00 00
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x86 EP 6 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x000a 1x 10 bytes
> bInterval 9
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x85 EP 5 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 0x04 EP 4 OUT
> bmAttributes 2
> Transfer Type Bulk
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0200 1x 512 bytes
> bInterval 0
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 4
> bAlternateSetting 0
> bNumEndpoints 3
> bInterfaceClass 255 Vendor Specific Class
> bInterfaceSubClass 255 Vendor Specific Subclass
> bInterfaceProtocol 255 Vendor Specific Protocol
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x88 EP 8 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0008 1x 8 bytes
> bInterval 9
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x87 EP 7 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 0x05 EP 5 OUT
> bmAttributes 2
> Transfer Type Bulk
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0200 1x 512 bytes
> bInterval 0
> Device Qualifier (for other device speed):
> bLength 10
> bDescriptorType 6
> bcdUSB 2.00
> bDeviceClass 0 (Defined at Interface level)
> bDeviceSubClass 0
> bDeviceProtocol 0
> bMaxPacketSize0 64
> bNumConfigurations 1
> Device Status: 0x0000
> (Bus Powered)
>
> ---
> drivers/usb/serial/option.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
> index 3b3513874cfd..370a0342072f 100644
> --- a/drivers/usb/serial/option.c
> +++ b/drivers/usb/serial/option.c
> @@ -233,6 +233,8 @@ static void option_instat_callback(struct urb *urb);
> /* These Quectel products use Qualcomm's vendor ID */
> #define QUECTEL_PRODUCT_UC20 0x9003
> #define QUECTEL_PRODUCT_UC15 0x9090
> +/* These Yuga products use Qualcomm's vendor ID */
> +#define YUGA_PROFUCT_CLM920_NC5 0x9625
s/PROFUCT/PRODUCT/
>
> #define QUECTEL_VENDOR_ID 0x2c7c
> /* These Quectel products use Quectel's vendor ID */
> @@ -674,6 +676,10 @@ static const struct option_blacklist_info cinterion_rmnet2_blacklist = {
> .reserved = BIT(4) | BIT(5),
> };
>
> +static const struct option_blacklist_info yuga_clm920_nc5_blacklist = {
> + .reserved = BIT(0) | BIT(1) | BIT(4),
> +};
Do you really need to blacklist the first interface?
If so it looks like you could use USB_DEVICE_AND_INTERFACE_INFO() to
avoid the blacklist altogether.
> +
> static const struct usb_device_id option_ids[] = {
> { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
> { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
> @@ -1178,6 +1184,9 @@ static const struct usb_device_id option_ids[] = {
> { USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC15)},
> { USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC20),
> .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
> + /* Yuga products use Qualcomm vendor ID */
> + { USB_DEVICE(QUALCOMM_VENDOR_ID, YUGA_PROFUCT_CLM920_NC5),
> + .driver_info = (kernel_ulong_t)&yuga_clm920_nc5_blacklist },
> /* Quectel products using Quectel vendor ID */
> { USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC21),
> .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
Thanks,
Johan
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