28 lines
811 B
Plaintext
28 lines
811 B
Plaintext
What: /sys/devices/platform/at91_can/net/<iface>/mb0_id
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Date: January 2011
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KernelVersion: 2.6.38
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Contact: Marc Kleine-Budde <kernel@pengutronix.de>
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Description:
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Value representing the can_id of mailbox 0.
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Default: 0x7ff (standard frame)
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Due to a chip bug (errata 50.2.6.3 & 50.3.5.3 in
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"AT91SAM9263 Preliminary 6249H-ATARM-27-Jul-09") the
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contents of mailbox 0 may be send under certain
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conditions (even if disabled or in rx mode).
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The workaround in the errata suggests not to use the
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mailbox and load it with an unused identifier.
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In order to use an extended can_id add the
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CAN_EFF_FLAG (0x80000000U) to the can_id. Example:
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- standard id 0x7ff::
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echo 0x7ff > /sys/class/net/can0/mb0_id
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- extended id 0x1fffffff::
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echo 0x9fffffff > /sys/class/net/can0/mb0_id
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