Revert "adb: close ep0 on disconnection."
This reverts commit 69e97e4bee9ee43ef55d1bb205bc4ca065d089bc.
Bug: 28932120
Change-Id: I5e2569abed316c089886556c432bfe59bca08549
diff --git a/adb/usb_linux_client.cpp b/adb/usb_linux_client.cpp
index c10b48c..0ba6b4b 100644
--- a/adb/usb_linux_client.cpp
+++ b/adb/usb_linux_client.cpp
@@ -400,33 +400,35 @@
v2_descriptor.os_header = os_desc_header;
v2_descriptor.os_desc = os_desc_compat;
- D("OPENING %s", USB_FFS_ADB_EP0);
- h->control = adb_open(USB_FFS_ADB_EP0, O_RDWR);
- if (h->control < 0) {
- D("[ %s: cannot open control endpoint: errno=%d]", USB_FFS_ADB_EP0, errno);
- goto err;
- }
-
- ret = adb_write(h->control, &v2_descriptor, sizeof(v2_descriptor));
- if (ret < 0) {
- v1_descriptor.header.magic = cpu_to_le32(FUNCTIONFS_DESCRIPTORS_MAGIC);
- v1_descriptor.header.length = cpu_to_le32(sizeof(v1_descriptor));
- v1_descriptor.header.fs_count = 3;
- v1_descriptor.header.hs_count = 3;
- v1_descriptor.fs_descs = fs_descriptors;
- v1_descriptor.hs_descs = hs_descriptors;
- D("[ %s: Switching to V1_descriptor format errno=%d ]", USB_FFS_ADB_EP0, errno);
- ret = adb_write(h->control, &v1_descriptor, sizeof(v1_descriptor));
- if (ret < 0) {
- D("[ %s: write descriptors failed: errno=%d ]", USB_FFS_ADB_EP0, errno);
+ if (h->control < 0) { // might have already done this before
+ D("OPENING %s", USB_FFS_ADB_EP0);
+ h->control = adb_open(USB_FFS_ADB_EP0, O_RDWR);
+ if (h->control < 0) {
+ D("[ %s: cannot open control endpoint: errno=%d]", USB_FFS_ADB_EP0, errno);
goto err;
}
- }
- ret = adb_write(h->control, &strings, sizeof(strings));
- if (ret < 0) {
- D("[ %s: writing strings failed: errno=%d]", USB_FFS_ADB_EP0, errno);
- goto err;
+ ret = adb_write(h->control, &v2_descriptor, sizeof(v2_descriptor));
+ if (ret < 0) {
+ v1_descriptor.header.magic = cpu_to_le32(FUNCTIONFS_DESCRIPTORS_MAGIC);
+ v1_descriptor.header.length = cpu_to_le32(sizeof(v1_descriptor));
+ v1_descriptor.header.fs_count = 3;
+ v1_descriptor.header.hs_count = 3;
+ v1_descriptor.fs_descs = fs_descriptors;
+ v1_descriptor.hs_descs = hs_descriptors;
+ D("[ %s: Switching to V1_descriptor format errno=%d ]", USB_FFS_ADB_EP0, errno);
+ ret = adb_write(h->control, &v1_descriptor, sizeof(v1_descriptor));
+ if (ret < 0) {
+ D("[ %s: write descriptors failed: errno=%d ]", USB_FFS_ADB_EP0, errno);
+ goto err;
+ }
+ }
+
+ ret = adb_write(h->control, &strings, sizeof(strings));
+ if (ret < 0) {
+ D("[ %s: writing strings failed: errno=%d]", USB_FFS_ADB_EP0, errno);
+ goto err;
+ }
}
h->bulk_out = adb_open(USB_FFS_ADB_OUT, O_RDWR);
@@ -554,7 +556,6 @@
h->kicked = false;
adb_close(h->bulk_out);
adb_close(h->bulk_in);
- adb_close(h->control);
// Notify usb_adb_open_thread to open a new connection.
adb_mutex_lock(&h->lock);
h->open_new_connection = true;