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usb: gadget: composite Allow for larger configuration descriptors 

The composite framework allows us to create gadgets composed from many
different functions, which need to fit into a single configuration
descriptor.

Some functions (like uvc) can produce configuration descriptors upwards
of 2500 bytes on their own.

This patch increases the limit from 1024 bytes to 4096.

Signed-off-by: Joel Pepper <joel.pepper@rwth-aachen.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Joel Pepper 2018-04-26 20:26:08 +02:00 committed by Felipe Balbi
parent 05645366f3
commit a665140e58
1 changed files with 1 additions and 1 deletions
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2
include/linux/usb/composite.h
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@ -52,7 +52,7 @@
#define USB_GADGET_DELAYED_STATUS 0x7fff /* Impossibly large value */ #define USB_GADGET_DELAYED_STATUS 0x7fff /* Impossibly large value */
/* big enough to hold our biggest descriptor */ /* big enough to hold our biggest descriptor */
#define USB_COMP_EP0_BUFSIZ 1024 #define USB_COMP_EP0_BUFSIZ 4096
/* OS feature descriptor length <= 4kB */ /* OS feature descriptor length <= 4kB */
#define USB_COMP_EP0_OS_DESC_BUFSIZ 4096 #define USB_COMP_EP0_OS_DESC_BUFSIZ 4096