From a13b6c39677bb2a4edd7207f2cf579b7ebd7f771 Mon Sep 17 00:00:00 2001 From: Meng Dongyang Date: Fri, 1 Jun 2018 11:17:01 +0800 Subject: [PATCH] usb: gadget: uac: add sample rate to attribute of uevent Add sample rate to attribute of uevent when receive the command of set interface. Change-Id: I9cea17ebe57441209a99dec0b1dc279e274accc3 Signed-off-by: Meng Dongyang --- drivers/usb/gadget/function/f_audio_source.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/usb/gadget/function/f_audio_source.c b/drivers/usb/gadget/function/f_audio_source.c index 573a938a5a3d..568cb897dcae 100644 --- a/drivers/usb/gadget/function/f_audio_source.c +++ b/drivers/usb/gadget/function/f_audio_source.c @@ -340,13 +340,19 @@ static inline struct audio_dev *func_to_audio(struct usb_function *f) static void audio_source_work(struct work_struct *data) { struct audio_dev *audio = container_of(data, struct audio_dev, work); - char *set_interface[3] = { "USB_STATE=SET_INTERFACE", NULL, NULL}; + char buffer[64]; + char *set_interface[4] = { "USB_STATE=SET_INTERFACE", NULL, NULL, + NULL }; char **uevent_envp = NULL; if (audio->alt) - set_interface[1] = "1"; + set_interface[1] = "STREAM_STATE=ON"; else - set_interface[1] = "0"; + set_interface[1] = "STREAM_STATE=OFF"; + + sprintf(buffer, "SAMPLE_RATE=%lld", audio->sample_rate); + set_interface[2] = buffer; + uevent_envp = set_interface; if (uevent_envp) {