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author | Sascha Hauer <s.hauer@pengutronix.de> | 2020-10-27 10:34:59 +0100 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-10-27 10:42:13 +0100 |
commit | 8ac84eedb283788584b90f07a1026377fa6a24fa (patch) | |
tree | 0c6760bdbd4cb77643b2d9dbb8481b35fdee57d2 /drivers | |
parent | 3ef10c4e7e719c8c4096a745578136be725134cd (diff) | |
download | barebox-8ac84eedb283788584b90f07a1026377fa6a24fa.tar.gz barebox-8ac84eedb283788584b90f07a1026377fa6a24fa.tar.xz |
usb: Fix initial max packet size
In case the USB device is a full speed device we have to set
dev->epmaxpacketin[0] and dev->epmaxpacketout[0] before doing a
get_descriptor_len() because otherwise it's unset during that call.
Fixes: 6d1d95a386 ("usb: factor out a usb_setup_descriptor() function")
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/usb/core/usb.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index c068c64c6b..ea244d4bcf 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -332,6 +332,8 @@ static int usb_setup_descriptor(struct usb_device *dev, bool do_read) dev->descriptor->bMaxPacketSize0 = 64; dev->maxpacketsize = PACKET_SIZE_64; } + dev->epmaxpacketin[0] = dev->descriptor->bMaxPacketSize0; + dev->epmaxpacketout[0] = dev->descriptor->bMaxPacketSize0; if (do_read && dev->speed == USB_SPEED_FULL) { int err; @@ -355,10 +357,10 @@ static int usb_setup_descriptor(struct usb_device *dev, bool do_read) err = get_descriptor_len(dev, 64, 8); if (err) return err; - } - dev->epmaxpacketin[0] = dev->descriptor->bMaxPacketSize0; - dev->epmaxpacketout[0] = dev->descriptor->bMaxPacketSize0; + dev->epmaxpacketin[0] = dev->descriptor->bMaxPacketSize0; + dev->epmaxpacketout[0] = dev->descriptor->bMaxPacketSize0; + } switch (dev->descriptor->bMaxPacketSize0) { case 8: |