Dear Vipin Kumar, > The current logic reads the port status just once after usb_hub_power_on > and expects the portstatus and portchange to report the connection status > immediately and correctly. > > Few pen drives are not able to report both of them immediately ie. those > pens report the connection change but not the connected state after the > first read. This opportunity once lost is gone for ever because the > u-boot, unlike linux or any other OS, works in polling mode. > > This patch modifies the logic to read the port status continuously until > the portstatus and portchange both report a connection change as well as a > connected state or no connection change and no connection. This logic is > placed in a timeout of 10 sec. At the end of it, the pen drive would have > either reported a ONE or a ZERO in bit 1 of portstatus as well as > portchange. > > It enhances the set of pen drives which can eventually be detected by > u-boot > > Note: This 10 second timeout is based purely on several experiments done > with the broken pen drives > > Signed-off-by: Vipin Kumar <vipin.ku...@st.com> > Acked-by: Igor Grinberg <grinb...@compulab.co.il>
Applied, tested. Thanks Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
