diff options
| author | Li Jun | 2021-01-25 21:43:50 +0800 |
|---|---|---|
| committer | Marek Vasut | 2021-01-31 14:08:56 +0100 |
| commit | 37e4fc3354dab8b4cbf835f83ed439753234ce12 (patch) | |
| tree | f0ab4cbdfcd86098f3c67fb710f44ed36980dd34 /drivers/usb/gadget/composite.c | |
| parent | a764c941289c404ae3a2605a204fc0375b566bb2 (diff) | |
usb: gadget: add WCID support for mfgtool
Enable WCID(Microsoft Compatible ID Feature Descriptor) for mfgtool.
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Diffstat (limited to 'drivers/usb/gadget/composite.c')
| -rw-r--r-- | drivers/usb/gadget/composite.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index a0c28dbe598..cd61bfec387 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -20,6 +20,10 @@ typedef struct { __le16 val; } __packed __le16_packed; static struct usb_composite_driver *composite; +static struct usb_configuration *os_desc_config; + +/* Microsoft OS String Descriptor */ +static char qw_sign_buf[OS_STRING_QW_SIGN_LEN / 2] = {'M', 'S', 'F', 'T', '1', '0', '0'}; static inline void le16_add_cpu_packed(__le16_packed *var, u16 val) { @@ -395,6 +399,10 @@ static int set_config(struct usb_composite_dev *cdev, goto done; cdev->config = c; + if (cdev->use_os_string) { + cdev->os_desc_config = c; + os_desc_config = c; + } /* Initialize all interfaces by setting them to altsetting zero. */ for (tmp = 0; tmp < MAX_CONFIG_INTERFACES; tmp++) { @@ -1358,6 +1366,18 @@ static int composite_bind(struct usb_gadget *gadget) sizeof(struct usb_device_descriptor)); cdev->desc.bMaxPacketSize0 = gadget->ep0->maxpacket; + if (cdev->use_os_string) { + /* TODO: Do we want to pass this via platform? */ + cdev->b_vendor_code = 0x40; + + /* Microsoft OS String Descriptor */ + utf8_to_utf16le(qw_sign_buf, (__le16 *)cdev->qw_sign, + OS_STRING_QW_SIGN_LEN / 2); + + if (os_desc_config) + cdev->os_desc_config = os_desc_config; + } + debug("%s: ready\n", composite->name); return 0; |