From f73db69f95921512b7cba586066723b500770d1a Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 22 Jul 2014 19:58:36 +0200 Subject: [PATCH] usb: gadget: f_uac1: add function strings uac1 function is missing strings. Add them. Tested-by: Sebastian Reimers Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Felipe Balbi --- drivers/usb/gadget/function/f_uac1.c | 51 +++++++++++++++++++++++++++++++++++- 1 file changed, 50 insertions(+), 1 deletion(-) diff --git a/drivers/usb/gadget/function/f_uac1.c b/drivers/usb/gadget/function/f_uac1.c index 2b4c82d..1c0c4b8 100644 --- a/drivers/usb/gadget/function/f_uac1.c +++ b/drivers/usb/gadget/function/f_uac1.c @@ -216,6 +216,37 @@ static struct usb_descriptor_header *f_audio_desc[] __initdata = { NULL, }; +enum { + STR_AC_IF, + STR_INPUT_TERMINAL, + STR_INPUT_TERMINAL_CH_NAMES, + STR_FEAT_DESC_0, + STR_OUTPUT_TERMINAL, + STR_AS_IF_ALT0, + STR_AS_IF_ALT1, +}; + +static struct usb_string strings_uac1[] = { + [STR_AC_IF].s = "AC Interface", + [STR_INPUT_TERMINAL].s = "Input terminal", + [STR_INPUT_TERMINAL_CH_NAMES].s = "Channels", + [STR_FEAT_DESC_0].s = "Volume control & mute", + [STR_OUTPUT_TERMINAL].s = "Output terminal", + [STR_AS_IF_ALT0].s = "AS Interface", + [STR_AS_IF_ALT1].s = "AS Interface", + { }, +}; + +static struct usb_gadget_strings str_uac1 = { + .language = 0x0409, /* en-us */ + .strings = strings_uac1, +}; + +static struct usb_gadget_strings *uac1_strings[] = { + &str_uac1, + NULL, +}; + /* * This function is an ALSA sound card following USB Audio Class Spec 1.0. */ @@ -724,6 +755,24 @@ static int __init audio_bind_config(struct usb_configuration *c) struct f_audio *audio; int status; + if (strings_uac1[0].id == 0) { + status = usb_string_ids_tab(c->cdev, strings_uac1); + if (status < 0) + return status; + ac_interface_desc.iInterface = strings_uac1[STR_AC_IF].id; + input_terminal_desc.iTerminal = + strings_uac1[STR_INPUT_TERMINAL].id; + input_terminal_desc.iChannelNames = + strings_uac1[STR_INPUT_TERMINAL_CH_NAMES].id; + feature_unit_desc.iFeature = strings_uac1[STR_FEAT_DESC_0].id; + output_terminal_desc.iTerminal = + strings_uac1[STR_OUTPUT_TERMINAL].id; + as_interface_alt_0_desc.iInterface = + strings_uac1[STR_AS_IF_ALT0].id; + as_interface_alt_1_desc.iInterface = + strings_uac1[STR_AS_IF_ALT1].id; + } + /* allocate and initialize one new instance */ audio = kzalloc(sizeof *audio, GFP_KERNEL); if (!audio) @@ -740,7 +789,7 @@ static int __init audio_bind_config(struct usb_configuration *c) if (status < 0) goto setup_fail; - audio->card.func.strings = audio_strings; + audio->card.func.strings = uac1_strings; audio->card.func.bind = f_audio_bind; audio->card.func.unbind = f_audio_unbind; audio->card.func.set_alt = f_audio_set_alt; -- 2.7.4