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authorPrashanth K <prashanth.k@oss.qualcomm.com>2025-04-22 16:02:29 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-05-01 17:38:41 +0200
commit8e3820271c517ceb89ab7442656ba49fa23ee1d0 (patch)
tree9dc7f668d1b56b571bee19b0574cfaabb4270e70 /drivers/usb/gadget/function/f_ecm.c
parent732f35cf8bdfece582f6e4a9c659119036577308 (diff)
usb: gadget: f_ecm: Add get_status callback
When host sends GET_STATUS to ECM interface, handle the request from the function driver. Since the interface is wakeup capable, set the corresponding bit, and set RW bit if the function is already armed for wakeup by the host. Cc: stable <stable@kernel.org> Fixes: 481c225c4802 ("usb: gadget: Handle function suspend feature selector") Signed-off-by: Prashanth K <prashanth.k@oss.qualcomm.com> Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Link: https://lore.kernel.org/r/20250422103231.1954387-2-prashanth.k@oss.qualcomm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/gadget/function/f_ecm.c')
-rw-r--r--drivers/usb/gadget/function/f_ecm.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/gadget/function/f_ecm.c b/drivers/usb/gadget/function/f_ecm.c
index 80841de845b0..027226325039 100644
--- a/drivers/usb/gadget/function/f_ecm.c
+++ b/drivers/usb/gadget/function/f_ecm.c
@@ -892,6 +892,12 @@ static void ecm_resume(struct usb_function *f)
gether_resume(&ecm->port);
}
+static int ecm_get_status(struct usb_function *f)
+{
+ return (f->func_wakeup_armed ? USB_INTRF_STAT_FUNC_RW : 0) |
+ USB_INTRF_STAT_FUNC_RW_CAP;
+}
+
static void ecm_free(struct usb_function *f)
{
struct f_ecm *ecm;
@@ -960,6 +966,7 @@ static struct usb_function *ecm_alloc(struct usb_function_instance *fi)
ecm->port.func.disable = ecm_disable;
ecm->port.func.free_func = ecm_free;
ecm->port.func.suspend = ecm_suspend;
+ ecm->port.func.get_status = ecm_get_status;
ecm->port.func.resume = ecm_resume;
return &ecm->port.func;