| Message ID | 20210909082651.11912-3-jackp@codeaurora.org (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | usb: gadget: f_uac2: Fixes for SuperSpeed | expand |
Hi Jack,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on usb/usb-testing]
[also build test ERROR on peter.chen-usb/for-usb-next linus/master next-20210909]
[cannot apply to v5.14]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Jack-Pham/usb-gadget-f_uac2-Fixes-for-SuperSpeed/20210909-162955
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
config: i386-randconfig-a016-20210908 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 261cbe98c38f8c1ee1a482fe76511110e790f58a)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/0day-ci/linux/commit/f262014b234c389fc10439b7c11aa10ea84270f6
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Jack-Pham/usb-gadget-f_uac2-Fixes-for-SuperSpeed/20210909-162955
git checkout f262014b234c389fc10439b7c11aa10ea84270f6
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=i386 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> drivers/usb/gadget/function/f_uac2.c:1181:19: error: member reference type 'struct usb_ss_ep_comp_descriptor' is not a pointer; did you mean to use '.'?
ss_epin_desc_comp->wBytesPerInterval = ss_epin_desc->wMaxPacketSize;
~~~~~~~~~~~~~~~~~^~
.
>> drivers/usb/gadget/function/f_uac2.c:1181:53: error: member reference type 'struct usb_endpoint_descriptor' is not a pointer; did you mean to use '.'?
ss_epin_desc_comp->wBytesPerInterval = ss_epin_desc->wMaxPacketSize;
~~~~~~~~~~~~^~
.
>> drivers/usb/gadget/function/f_uac2.c:1181:39: error: expression is not assignable
ss_epin_desc_comp->wBytesPerInterval = ss_epin_desc->wMaxPacketSize;
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
drivers/usb/gadget/function/f_uac2.c:1182:20: error: member reference type 'struct usb_ss_ep_comp_descriptor' is not a pointer; did you mean to use '.'?
ss_epout_desc_comp->wBytesPerInterval = ss_epout_desc->wMaxPacketSize;
~~~~~~~~~~~~~~~~~~^~
.
drivers/usb/gadget/function/f_uac2.c:1182:55: error: member reference type 'struct usb_endpoint_descriptor' is not a pointer; did you mean to use '.'?
ss_epout_desc_comp->wBytesPerInterval = ss_epout_desc->wMaxPacketSize;
~~~~~~~~~~~~~^~
.
drivers/usb/gadget/function/f_uac2.c:1182:40: error: expression is not assignable
ss_epout_desc_comp->wBytesPerInterval = ss_epout_desc->wMaxPacketSize;
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
6 errors generated.
vim +1181 drivers/usb/gadget/function/f_uac2.c
939
940 static int
941 afunc_bind(struct usb_configuration *cfg, struct usb_function *fn)
942 {
943 struct f_uac2 *uac2 = func_to_uac2(fn);
944 struct g_audio *agdev = func_to_g_audio(fn);
945 struct usb_composite_dev *cdev = cfg->cdev;
946 struct usb_gadget *gadget = cdev->gadget;
947 struct device *dev = &gadget->dev;
948 struct f_uac2_opts *uac2_opts = g_audio_to_uac2_opts(agdev);
949 struct usb_string *us;
950 int ret;
951
952 ret = afunc_validate_opts(agdev, dev);
953 if (ret)
954 return ret;
955
956 us = usb_gstrings_attach(cdev, fn_strings, ARRAY_SIZE(strings_fn));
957 if (IS_ERR(us))
958 return PTR_ERR(us);
959
960 if (FUOUT_EN(uac2_opts)) {
961 out_feature_unit_desc = build_fu_desc(uac2_opts->c_chmask);
962 if (!out_feature_unit_desc)
963 return -ENOMEM;
964 }
965 if (FUIN_EN(uac2_opts)) {
966 in_feature_unit_desc = build_fu_desc(uac2_opts->p_chmask);
967 if (!in_feature_unit_desc) {
968 ret = -ENOMEM;
969 goto err_free_fu;
970 }
971 }
972
973 iad_desc.iFunction = us[STR_ASSOC].id;
974 std_ac_if_desc.iInterface = us[STR_IF_CTRL].id;
975 in_clk_src_desc.iClockSource = us[STR_CLKSRC_IN].id;
976 out_clk_src_desc.iClockSource = us[STR_CLKSRC_OUT].id;
977 usb_out_it_desc.iTerminal = us[STR_USB_IT].id;
978 io_in_it_desc.iTerminal = us[STR_IO_IT].id;
979 usb_in_ot_desc.iTerminal = us[STR_USB_OT].id;
980 io_out_ot_desc.iTerminal = us[STR_IO_OT].id;
981 std_as_out_if0_desc.iInterface = us[STR_AS_OUT_ALT0].id;
982 std_as_out_if1_desc.iInterface = us[STR_AS_OUT_ALT1].id;
983 std_as_in_if0_desc.iInterface = us[STR_AS_IN_ALT0].id;
984 std_as_in_if1_desc.iInterface = us[STR_AS_IN_ALT1].id;
985
986 if (FUOUT_EN(uac2_opts)) {
987 u8 *i_feature = (u8 *)out_feature_unit_desc +
988 out_feature_unit_desc->bLength - 1;
989 *i_feature = us[STR_FU_OUT].id;
990 }
991 if (FUIN_EN(uac2_opts)) {
992 u8 *i_feature = (u8 *)in_feature_unit_desc +
993 in_feature_unit_desc->bLength - 1;
994 *i_feature = us[STR_FU_IN].id;
995 }
996
997
998 /* Initialize the configurable parameters */
999 usb_out_it_desc.bNrChannels = num_channels(uac2_opts->c_chmask);
1000 usb_out_it_desc.bmChannelConfig = cpu_to_le32(uac2_opts->c_chmask);
1001 io_in_it_desc.bNrChannels = num_channels(uac2_opts->p_chmask);
1002 io_in_it_desc.bmChannelConfig = cpu_to_le32(uac2_opts->p_chmask);
1003 as_out_hdr_desc.bNrChannels = num_channels(uac2_opts->c_chmask);
1004 as_out_hdr_desc.bmChannelConfig = cpu_to_le32(uac2_opts->c_chmask);
1005 as_in_hdr_desc.bNrChannels = num_channels(uac2_opts->p_chmask);
1006 as_in_hdr_desc.bmChannelConfig = cpu_to_le32(uac2_opts->p_chmask);
1007 as_out_fmt1_desc.bSubslotSize = uac2_opts->c_ssize;
1008 as_out_fmt1_desc.bBitResolution = uac2_opts->c_ssize * 8;
1009 as_in_fmt1_desc.bSubslotSize = uac2_opts->p_ssize;
1010 as_in_fmt1_desc.bBitResolution = uac2_opts->p_ssize * 8;
1011 if (FUOUT_EN(uac2_opts)) {
1012 __le32 *bma = (__le32 *)&out_feature_unit_desc->bmaControls[0];
1013 u32 control = 0;
1014
1015 if (uac2_opts->c_mute_present)
1016 control |= CONTROL_RDWR << FU_MUTE_CTRL;
1017 if (uac2_opts->c_volume_present)
1018 control |= CONTROL_RDWR << FU_VOL_CTRL;
1019 *bma = cpu_to_le32(control);
1020 }
1021 if (FUIN_EN(uac2_opts)) {
1022 __le32 *bma = (__le32 *)&in_feature_unit_desc->bmaControls[0];
1023 u32 control = 0;
1024
1025 if (uac2_opts->p_mute_present)
1026 control |= CONTROL_RDWR << FU_MUTE_CTRL;
1027 if (uac2_opts->p_volume_present)
1028 control |= CONTROL_RDWR << FU_VOL_CTRL;
1029 *bma = cpu_to_le32(control);
1030 }
1031
1032 snprintf(clksrc_in, sizeof(clksrc_in), "%uHz", uac2_opts->p_srate);
1033 snprintf(clksrc_out, sizeof(clksrc_out), "%uHz", uac2_opts->c_srate);
1034
1035 ret = usb_interface_id(cfg, fn);
1036 if (ret < 0) {
1037 dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
1038 goto err_free_fu;
1039 }
1040 iad_desc.bFirstInterface = ret;
1041
1042 std_ac_if_desc.bInterfaceNumber = ret;
1043 uac2->ac_intf = ret;
1044 uac2->ac_alt = 0;
1045
1046 if (EPOUT_EN(uac2_opts)) {
1047 ret = usb_interface_id(cfg, fn);
1048 if (ret < 0) {
1049 dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
1050 goto err_free_fu;
1051 }
1052 std_as_out_if0_desc.bInterfaceNumber = ret;
1053 std_as_out_if1_desc.bInterfaceNumber = ret;
1054 uac2->as_out_intf = ret;
1055 uac2->as_out_alt = 0;
1056
1057 if (EPOUT_FBACK_IN_EN(uac2_opts)) {
1058 fs_epout_desc.bmAttributes =
1059 USB_ENDPOINT_XFER_ISOC | USB_ENDPOINT_SYNC_ASYNC;
1060 hs_epout_desc.bmAttributes =
1061 USB_ENDPOINT_XFER_ISOC | USB_ENDPOINT_SYNC_ASYNC;
1062 ss_epout_desc.bmAttributes =
1063 USB_ENDPOINT_XFER_ISOC | USB_ENDPOINT_SYNC_ASYNC;
1064 std_as_out_if1_desc.bNumEndpoints++;
1065 } else {
1066 fs_epout_desc.bmAttributes =
1067 USB_ENDPOINT_XFER_ISOC | USB_ENDPOINT_SYNC_ADAPTIVE;
1068 hs_epout_desc.bmAttributes =
1069 USB_ENDPOINT_XFER_ISOC | USB_ENDPOINT_SYNC_ADAPTIVE;
1070 ss_epout_desc.bmAttributes =
1071 USB_ENDPOINT_XFER_ISOC | USB_ENDPOINT_SYNC_ADAPTIVE;
1072 }
1073 }
1074
1075 if (EPIN_EN(uac2_opts)) {
1076 ret = usb_interface_id(cfg, fn);
1077 if (ret < 0) {
1078 dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
1079 goto err_free_fu;
1080 }
1081 std_as_in_if0_desc.bInterfaceNumber = ret;
1082 std_as_in_if1_desc.bInterfaceNumber = ret;
1083 uac2->as_in_intf = ret;
1084 uac2->as_in_alt = 0;
1085 }
1086
1087 if (FUOUT_EN(uac2_opts) || FUIN_EN(uac2_opts)) {
1088 uac2->int_ep = usb_ep_autoconfig(gadget, &fs_ep_int_desc);
1089 if (!uac2->int_ep) {
1090 dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
1091 ret = -ENODEV;
1092 goto err_free_fu;
1093 }
1094
1095 std_ac_if_desc.bNumEndpoints = 1;
1096 }
1097
1098 /* Calculate wMaxPacketSize according to audio bandwidth */
1099 ret = set_ep_max_packet_size(uac2_opts, &fs_epin_desc, USB_SPEED_FULL,
1100 true);
1101 if (ret < 0) {
1102 dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
1103 return ret;
1104 }
1105
1106 ret = set_ep_max_packet_size(uac2_opts, &fs_epout_desc, USB_SPEED_FULL,
1107 false);
1108 if (ret < 0) {
1109 dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
1110 return ret;
1111 }
1112
1113 ret = set_ep_max_packet_size(uac2_opts, &hs_epin_desc, USB_SPEED_HIGH,
1114 true);
1115 if (ret < 0) {
1116 dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
1117 return ret;
1118 }
1119
1120 ret = set_ep_max_packet_size(uac2_opts, &hs_epout_desc, USB_SPEED_HIGH,
1121 false);
1122 if (ret < 0) {
1123 dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
1124 return ret;
1125 }
1126
1127 ret = set_ep_max_packet_size(uac2_opts, &ss_epin_desc, USB_SPEED_SUPER,
1128 true);
1129 if (ret < 0) {
1130 dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
1131 return ret;
1132 }
1133
1134 ret = set_ep_max_packet_size(uac2_opts, &ss_epout_desc, USB_SPEED_SUPER,
1135 false);
1136 if (ret < 0) {
1137 dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
1138 return ret;
1139 }
1140
1141 if (EPOUT_EN(uac2_opts)) {
1142 agdev->out_ep = usb_ep_autoconfig(gadget, &fs_epout_desc);
1143 if (!agdev->out_ep) {
1144 dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
1145 ret = -ENODEV;
1146 goto err_free_fu;
1147 }
1148 if (EPOUT_FBACK_IN_EN(uac2_opts)) {
1149 agdev->in_ep_fback = usb_ep_autoconfig(gadget,
1150 &fs_epin_fback_desc);
1151 if (!agdev->in_ep_fback) {
1152 dev_err(dev, "%s:%d Error!\n",
1153 __func__, __LINE__);
1154 ret = -ENODEV;
1155 goto err_free_fu;
1156 }
1157 }
1158 }
1159
1160 if (EPIN_EN(uac2_opts)) {
1161 agdev->in_ep = usb_ep_autoconfig(gadget, &fs_epin_desc);
1162 if (!agdev->in_ep) {
1163 dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
1164 ret = -ENODEV;
1165 goto err_free_fu;
1166 }
1167 }
1168
1169 agdev->in_ep_maxpsize = max_t(u16,
1170 le16_to_cpu(fs_epin_desc.wMaxPacketSize),
1171 le16_to_cpu(hs_epin_desc.wMaxPacketSize));
1172 agdev->out_ep_maxpsize = max_t(u16,
1173 le16_to_cpu(fs_epout_desc.wMaxPacketSize),
1174 le16_to_cpu(hs_epout_desc.wMaxPacketSize));
1175
1176 agdev->in_ep_maxpsize = max_t(u16, agdev->in_ep_maxpsize,
1177 le16_to_cpu(ss_epin_desc.wMaxPacketSize));
1178 agdev->out_ep_maxpsize = max_t(u16, agdev->out_ep_maxpsize,
1179 le16_to_cpu(ss_epout_desc.wMaxPacketSize));
1180
> 1181 ss_epin_desc_comp->wBytesPerInterval = ss_epin_desc->wMaxPacketSize;
1182 ss_epout_desc_comp->wBytesPerInterval = ss_epout_desc->wMaxPacketSize;
1183
1184 // HS and SS endpoint addresses are copied from autoconfigured FS descriptors
1185 hs_ep_int_desc.bEndpointAddress = fs_ep_int_desc.bEndpointAddress;
1186 hs_epout_desc.bEndpointAddress = fs_epout_desc.bEndpointAddress;
1187 hs_epin_fback_desc.bEndpointAddress = fs_epin_fback_desc.bEndpointAddress;
1188 hs_epin_desc.bEndpointAddress = fs_epin_desc.bEndpointAddress;
1189 ss_epout_desc.bEndpointAddress = fs_epout_desc.bEndpointAddress;
1190 ss_epin_fback_desc.bEndpointAddress = fs_epin_fback_desc.bEndpointAddress;
1191 ss_epin_desc.bEndpointAddress = fs_epin_desc.bEndpointAddress;
1192 ss_ep_int_desc.bEndpointAddress = fs_ep_int_desc.bEndpointAddress;
1193
1194 setup_descriptor(uac2_opts);
1195
1196 ret = usb_assign_descriptors(fn, fs_audio_desc, hs_audio_desc, ss_audio_desc,
1197 ss_audio_desc);
1198 if (ret)
1199 goto err_free_fu;
1200
1201 agdev->gadget = gadget;
1202
1203 agdev->params.p_chmask = uac2_opts->p_chmask;
1204 agdev->params.p_srate = uac2_opts->p_srate;
1205 agdev->params.p_ssize = uac2_opts->p_ssize;
1206 if (FUIN_EN(uac2_opts)) {
1207 agdev->params.p_fu.id = USB_IN_FU_ID;
1208 agdev->params.p_fu.mute_present = uac2_opts->p_mute_present;
1209 agdev->params.p_fu.volume_present = uac2_opts->p_volume_present;
1210 agdev->params.p_fu.volume_min = uac2_opts->p_volume_min;
1211 agdev->params.p_fu.volume_max = uac2_opts->p_volume_max;
1212 agdev->params.p_fu.volume_res = uac2_opts->p_volume_res;
1213 }
1214 agdev->params.c_chmask = uac2_opts->c_chmask;
1215 agdev->params.c_srate = uac2_opts->c_srate;
1216 agdev->params.c_ssize = uac2_opts->c_ssize;
1217 if (FUOUT_EN(uac2_opts)) {
1218 agdev->params.c_fu.id = USB_OUT_FU_ID;
1219 agdev->params.c_fu.mute_present = uac2_opts->c_mute_present;
1220 agdev->params.c_fu.volume_present = uac2_opts->c_volume_present;
1221 agdev->params.c_fu.volume_min = uac2_opts->c_volume_min;
1222 agdev->params.c_fu.volume_max = uac2_opts->c_volume_max;
1223 agdev->params.c_fu.volume_res = uac2_opts->c_volume_res;
1224 }
1225 agdev->params.req_number = uac2_opts->req_number;
1226 agdev->params.fb_max = uac2_opts->fb_max;
1227
1228 if (FUOUT_EN(uac2_opts) || FUIN_EN(uac2_opts))
1229 agdev->notify = afunc_notify;
1230
1231 ret = g_audio_setup(agdev, "UAC2 PCM", "UAC2_Gadget");
1232 if (ret)
1233 goto err_free_descs;
1234
1235 return 0;
1236
1237 err_free_descs:
1238 usb_free_all_descriptors(fn);
1239 agdev->gadget = NULL;
1240 err_free_fu:
1241 kfree(out_feature_unit_desc);
1242 out_feature_unit_desc = NULL;
1243 kfree(in_feature_unit_desc);
1244 in_feature_unit_desc = NULL;
1245 return ret;
1246 }
1247
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
On Fri, Sep 10, 2021 at 01:08:02AM +0800, kernel test robot wrote: > Hi Jack, > > Thank you for the patch! Yet something to improve: > > [auto build test ERROR on usb/usb-testing] > [also build test ERROR on peter.chen-usb/for-usb-next linus/master next-20210909] > [cannot apply to v5.14] > [If your patch is applied to the wrong git tree, kindly drop us a note. > And when submitting patch, we suggest to use '--base' as documented in > https://git-scm.com/docs/git-format-patch] > > url: https://github.com/0day-ci/linux/commits/Jack-Pham/usb-gadget-f_uac2-Fixes-for-SuperSpeed/20210909-162955 > base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing > config: i386-randconfig-a016-20210908 (attached as .config) > compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 261cbe98c38f8c1ee1a482fe76511110e790f58a) > reproduce (this is a W=1 build): > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # https://github.com/0day-ci/linux/commit/f262014b234c389fc10439b7c11aa10ea84270f6 > git remote add linux-review https://github.com/0day-ci/linux > git fetch --no-tags linux-review Jack-Pham/usb-gadget-f_uac2-Fixes-for-SuperSpeed/20210909-162955 > git checkout f262014b234c389fc10439b7c11aa10ea84270f6 > # save the attached .config to linux build tree > mkdir build_dir > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=i386 SHELL=/bin/bash > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@intel.com> > > All errors (new ones prefixed by >>): > > >> drivers/usb/gadget/function/f_uac2.c:1181:19: error: member reference type 'struct usb_ss_ep_comp_descriptor' is not a pointer; did you mean to use '.'? > ss_epin_desc_comp->wBytesPerInterval = ss_epin_desc->wMaxPacketSize; > ~~~~~~~~~~~~~~~~~^~ > . > >> drivers/usb/gadget/function/f_uac2.c:1181:53: error: member reference type 'struct usb_endpoint_descriptor' is not a pointer; did you mean to use '.'? > ss_epin_desc_comp->wBytesPerInterval = ss_epin_desc->wMaxPacketSize; > ~~~~~~~~~~~~^~ > . > >> drivers/usb/gadget/function/f_uac2.c:1181:39: error: expression is not assignable > ss_epin_desc_comp->wBytesPerInterval = ss_epin_desc->wMaxPacketSize; > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ > drivers/usb/gadget/function/f_uac2.c:1182:20: error: member reference type 'struct usb_ss_ep_comp_descriptor' is not a pointer; did you mean to use '.'? > ss_epout_desc_comp->wBytesPerInterval = ss_epout_desc->wMaxPacketSize; > ~~~~~~~~~~~~~~~~~~^~ > . > drivers/usb/gadget/function/f_uac2.c:1182:55: error: member reference type 'struct usb_endpoint_descriptor' is not a pointer; did you mean to use '.'? > ss_epout_desc_comp->wBytesPerInterval = ss_epout_desc->wMaxPacketSize; > ~~~~~~~~~~~~~^~ > . > drivers/usb/gadget/function/f_uac2.c:1182:40: error: expression is not assignable > ss_epout_desc_comp->wBytesPerInterval = ss_epout_desc->wMaxPacketSize; > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ > 6 errors generated. DOH! Was wondering why this was working for me but failed to realize I was still loading an older build that had previous changes. Sorry for the noise!! V3 coming very soon. Jack
diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c index d89c1ebb07f4..33d60b926bae 100644 --- a/drivers/usb/gadget/function/f_uac2.c +++ b/drivers/usb/gadget/function/f_uac2.c @@ -1178,6 +1178,9 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn) agdev->out_ep_maxpsize = max_t(u16, agdev->out_ep_maxpsize, le16_to_cpu(ss_epout_desc.wMaxPacketSize)); + ss_epin_desc_comp->wBytesPerInterval = ss_epin_desc->wMaxPacketSize; + ss_epout_desc_comp->wBytesPerInterval = ss_epout_desc->wMaxPacketSize; + // HS and SS endpoint addresses are copied from autoconfigured FS descriptors hs_ep_int_desc.bEndpointAddress = fs_ep_int_desc.bEndpointAddress; hs_epout_desc.bEndpointAddress = fs_epout_desc.bEndpointAddress;
For Isochronous endpoints, the SS companion descriptor's wBytesPerInterval field is required to reserve bus time in order to transmit the required payload during the service interval. If left at 0, the UAC2 function is unable to transact data on its playback or capture endpoints in SuperSpeed mode. Since f_uac2 currently does not support any bursting this value can be exactly equal to the calculated wMaxPacketSize. Tested with Windows 10 as a host. Fixes: f8cb3d556be3 ("usb: f_uac2: adds support for SS and SSP") Signed-off-by: Jack Pham <jackp@codeaurora.org> --- v2: New patch drivers/usb/gadget/function/f_uac2.c | 3 +++ 1 file changed, 3 insertions(+)