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| author | Bin Liu <b-liu@ti.com> | 2014-08-12 21:18:43 +0200 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2014-09-03 16:15:56 +0200 |
| commit | 9267edaf8cd7b0ef2cd7785c677fe792c077b6ab (patch) | |
| tree | af2a1a8b232c7e7a3c5ade8aba73c5b96374d0a8 /drivers/char/ppdev.c | |
| parent | Linux 3.17-rc3 (diff) | |
| download | linux-9267edaf8cd7b0ef2cd7785c677fe792c077b6ab.tar.xz linux-9267edaf8cd7b0ef2cd7785c677fe792c077b6ab.zip | |
usb: musb: cppi41: fix not transmitting zero length packet issue
CPPI TX does not transmit ZLP for TX transfers which
- transfer size is multiple of EP packet size,
- and URB_ZERO_PACKET is set in urb->transfer_flags.
The fix is transmitting the ZLP using PIO mode after the CPPI TX is
done.
Validated using the following usbtest write case in MUSB host mode.
# testusb -t1 -c1
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/char/ppdev.c')
0 files changed, 0 insertions, 0 deletions