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authorJason A. Donenfeld <Jason@zx2c4.com>2015-04-22 14:35:09 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-06-05 23:19:56 -0700
commitd7493ce59186d9557324e4c9cc099051330a97bb (patch)
treed19fcb12f52e59cc9414b3e3e54dcbac57b44f2d
parent4c1c7ca54a9dbf06f273a49f130e14e09e563beb (diff)
downloadlinux-linaro-stable-d7493ce59186d9557324e4c9cc099051330a97bb.tar.gz
USB: visor: Match I330 phone more precisely
commit 82ee3aeb9295c5fc37fd2ddf20f13ac2b40ec97d upstream. Samsung has just released a portable USB3 SSD, coming in a very small and nice form factor. It's USB ID is 04e8:8001, which unfortunately is already used by the Palm Visor driver for the Samsung I330 phone cradle. Having pl2303 or visor pick up this device ID results in conflicts with the usb-storage driver, which handles the newly released portable USB3 SSD. To work around this conflict, I've dug up a mailing list post [1] from a long time ago, in which a user posts the full USB descriptor information. The most specific value in this appears to be the interface class, which has value 255 (0xff). Since usb-storage requires an interface class of 0x8, I believe it's correct to disambiguate the two devices by matching on 0xff inside visor. [1] http://permalink.gmane.org/gmane.linux.usb.user/4264 Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/serial/visor.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index 9910aa2edf4b..727905de0ba4 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -96,7 +96,7 @@ static struct usb_device_id id_table [] = {
.driver_info = (kernel_ulong_t)&palm_os_4_probe },
{ USB_DEVICE(ACER_VENDOR_ID, ACER_S10_ID),
.driver_info = (kernel_ulong_t)&palm_os_4_probe },
- { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID),
+ { USB_DEVICE_INTERFACE_CLASS(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID, 0xff),
.driver_info = (kernel_ulong_t)&palm_os_4_probe },
{ USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID),
.driver_info = (kernel_ulong_t)&palm_os_4_probe },