From: Michael Hennerich <michael.hennerich@xxxxxxxxxx> A while ago I provided a patch that fixed device detection after device removal (USB: sl811-hcd: Fix device disconnect). Chris Brissette pointed out that the detection/removal counter method to distinguish insert or remove my fail under certain conditions. Latest SL811HS datasheet (Document 38-08008 Rev. *D) indicates that bit 6 (SL11H_INTMASK_RD) of the Interrupt Status Register together with bit 5 (SL11H_INTMASK_INSRMV) can be used to determine whether a device has been inserted or removed. Signed-off-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx> Signed-off-by: Mike Frysinger <vapier@xxxxxxxxxx> --- drivers/usb/host/sl811-hcd.c | 7 ++++--- 1 files changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index e11cc3a..32f56db 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -720,10 +720,11 @@ retry: /* port status seems weird until after reset, so * force the reset and make khubd clean up later. */ - if (sl811->stat_insrmv & 1) - sl811->port1 |= 1 << USB_PORT_FEAT_CONNECTION; - else + + if (irqstat & SL11H_INTMASK_RD) sl811->port1 &= ~(1 << USB_PORT_FEAT_CONNECTION); + else + sl811->port1 |= 1 << USB_PORT_FEAT_CONNECTION; sl811->port1 |= 1 << USB_PORT_FEAT_C_CONNECTION; -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
