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| author | David Vrabel <david.vrabel@csr.com> | 2009-04-08 17:36:28 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-04-17 10:50:27 -0700 |
| commit | 3444b26afa145148951112534f298bdc554ec789 (patch) | |
| tree | b2c8d9b13d04869ffdad1e46a9ebbf819e7ed7b4 /drivers/usb/core/devio.c | |
| parent | d45e230bf03850f17394a760dfa003d986a67729 (diff) | |
| download | lwn-3444b26afa145148951112534f298bdc554ec789.tar.gz lwn-3444b26afa145148951112534f298bdc554ec789.zip | |
USB: add reset endpoint operations
Wireless USB endpoint state has a sequence number and a current
window and not just a single toggle bit. So allow HCDs to provide a
endpoint_reset method and call this or clear the software toggles as
required (after a clear halt, set configuration etc.).
usb_settoggle() and friends are then HCD internal and are moved into
core/hcd.h and all device drivers call usb_reset_endpoint() instead.
If the device endpoint state has been reset (with a clear halt) but
the host endpoint state has not then subsequent data transfers will
not complete. The device will only work again after it is reset or
disconnected.
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/devio.c')
| -rw-r--r-- | drivers/usb/core/devio.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index df3c539f652a..308609039c73 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -841,7 +841,7 @@ static int proc_resetep(struct dev_state *ps, void __user *arg) ret = checkintf(ps, ret); if (ret) return ret; - usb_settoggle(ps->dev, ep & 0xf, !(ep & USB_DIR_IN), 0); + usb_reset_endpoint(ps->dev, ep); return 0; } |