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usb: Add retry on role switch

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Bug: 341996696
Change-Id: I8caa65288af1588d24fea4aa6c5768d45d69bbd5
Signed-off-by: Kyle Tso <kyletso@google.com>
(cherry picked from commit ef5856a4474002cc35a51377adffddd4cb239796)
This commit is contained in:
Kyle Tso
2024-06-12 17:14:02 +08:00
parent 76de5fed8d
commit d8fffffda4
1 changed files with 4 additions and 0 deletions
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4
usb/usb/Usb.cpp
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@@ -602,6 +602,10 @@ ScopedAStatus Usb::switchRole(const string& in_portName, const PortRole& in_role
fp = fopen(filename.c_str(), "w");
if (fp != NULL) {
int ret = fputs(convertRoletoString(in_role).c_str(), fp);
if (ret == EAGAIN) {
std::this_thread::sleep_for(std::chrono::milliseconds(700));
ret = fputs(convertRoletoString(in_role).c_str(), fp);
}
fclose(fp);
if ((ret != EOF) && ReadFileToString(filename, &written)) {
written = Trim(written);